Cairns Boat Tours
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A tour boat moored over the Great Barrier Reef off Cairns with snorkellers in the water

Cairns boat tours

Cairns boat tours give you a full reef day at a fair price. We compared 18 cruises from $77, all with free cancellation, and the top pick holds 4.7 from 657 reviews. Your fare includes three Outer Reef sites on one catamaran day.

Price from

Boat tour

$77

Today's lowest Cairns boat tour across all 18 cruises

Average rating

All 18 cruises

47

16,264 verified reviews across 18 cruises

Time on the water

Shortest to longest

90min–9h

Shortest: Sunset Inlet River
Longest: Great Barrier Reef Cruise

Free cancellation
Reserve now, pay later
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Everything you can book here

Eighteen ways to get out on the water

Eighteen listings, from ninety minutes on Trinity Inlet to two days with a night aboard. A Cairns tour on the water can mean the outer reef, Green Island, a multi-level pontoon or a 16-metre sailing boat. Every tour from Cairns boards in the city, apart from the Frankland Islands trip, which starts at Deeral.

A catamaran moored at the outer reef with snorkellers in the water beside it
Our top pickThree reef sites
8 h

Cairns: Silverswift 3 Great Barrier Reef Sites in 1 Day

★ 4.7 · 657 reviews

  • Eight hours, three reef sites in one day
  • snorkel or dive at each
  • Departs from Cairns
  • Free cancellation
A large white catamaran under way on open water off Cairns
3,875 reviewsLunch on board
9 h

From Cairns: Great Barrier Reef Cruise by Premium Catamaran

★ 4.8 · 3 875 reviews

  • Nine hours, a premium catamaran to the reef
  • lunch on board
  • Likely to sell out
  • Free cancellation
Snorkellers entering the water from the back platform of a reef boat
Half daySmall group
4 h

Cairns: Great Barrier Reef Half-Day Snorkelling Tour

★ 4.7 · 1 931 reviews

  • Four hours, half a day on the Great Barrier Reef
  • snorkelling from the boat
  • Likely to sell out
  • Free cancellation
A sandy beach and palms on Green Island with a jetty running out from shore
Full or half dayGlass-bottom boat
5 h

Cairns: Green Island Full & Half Day Cruise Options

★ 4.4 · 1 916 reviews

  • Five hours, Green Island and its coral gardens
  • glass-bottom boat option
  • Departs from Cairns
  • Free cancellation
A superyacht moored over the reef with the tender platform lowered
Two reef sitesBuffet lunch
8 h 30 m

Cairns: Outer Great Barrier Reef Full-Day Tour with Lunch

★ 4.7 · 1 654 reviews

  • Eight and a half hours, a full day on the outer reef
  • lunch on board
  • Likely to sell out
  • Free cancellation
A sandy cay surrounded by shallow water at the outer edge of the reef
Snorkel & diveUpolu Cay
8 h 30 m

Cairns: Outer and Coral Cay Snorkel and Dive Cruise

★ 4.8 · 1 626 reviews

  • Eight and a half hours, the outer reef and a coral cay
  • snorkel and dive options
  • Meal included
  • Free cancellation
A crew member briefing guests on the deck of a reef boat before a snorkel
9 hoursScuba upgrade
9 h

Cairns: Great Barrier Reef Premium Snorkel, Dive & Culture

★ 4.7 · 892 reviews

  • Nine hours, vibrant reefs and lunch on board
  • a scuba upgrade if you want it
  • Departs from Cairns
  • Free cancellation
A small group of snorkellers in the water beside a reef boat
Rated 4.9626 reviews
5 h

Cairns: All-Inclusive Great Barrier Reef Half-Day Snorkeling

★ 4.9 · 626 reviews

  • Five hours, marine biologist snorkel guides
  • 15 exclusive mooring sites
  • Likely to sell out
  • Free cancellation
A catamaran under sail on the way to Green Island off Cairns
Price from4 hours
4 h

From Cairns: Green Island Half-Day Morning Cruise

★ 4.1 · 468 reviews

  • Four hours, a catamaran to Green Island
  • coral gardens and reef fish
  • Departs from Cairns
  • Free cancellation
A table laid for dinner on the deck of a catamaran at dusk
Dinner2.5 hours
2 h 30 m

Cairns: Spirit of Cairns Dinner Cruise

★ 4.5 · 423 reviews

  • 2.5 hours, dinner on a catamaran
  • Trinity Inlet as night falls
  • Meal included
  • Free cancellation
A sailing boat anchored off a tropical island with its sails furled
25 guestsUnder sail
9 h

Cairns: Green Island & Great Barrier Reef Sailing Tour

★ 4.8 · 411 reviews

  • Nine hours, a 16-metre sailing boat, 25 guests
  • an exclusive reef site
  • Meal included
  • Free cancellation
A multi-level pontoon moored at the outer reef with a boat tied alongside
PontoonWaterslide
7 h 30 m

Cairns: Outer Great Barrier Reef Pontoon with Activities

★ 4.5 · 403 reviews

  • Seven and a half hours, a multi-level pontoon on the reef
  • glass-bottom boat and waterslide
  • Meal included
  • Free cancellation
A small group of guests on the deck of a boat moored over the reef
Small groupTwo locations
7 h

Cairns: Great Barrier Reef Small Group Snorkelling Tour

★ 4.8 · 362 reviews

  • Seven hours, two reef locations in a small group
  • a packed lunch on board
  • Likely to sell out
  • Free cancellation
A cruise boat on Trinity Inlet with the Cairns waterfront behind it
90 minutesTrinity Inlet
1 h 30 m

Cairns: 90-minute Sunset Inlet River Cruise

★ 4.6 · 243 reviews

  • One and a half hours, ninety minutes at sunset
  • a drink and the Cairns skyline
  • Cheapest here
  • Free cancellation
A forested island rising above a beach with a boat anchored offshore
Two stopsBuffet lunch
9 h

Cairns: Great Barrier Reef and Fitzroy Island Boat Tour

★ 4.6 · 239 reviews

  • Nine hours, Moore Reef pontoon and Fitzroy Island
  • a buffet lunch
  • Departs from Cairns
  • Free cancellation
A boat heading down a mangrove-lined waterway towards the coast
From DeeralRiver & reef
9 h

From Cairns Frankland Islands River, Rainforest & Reef Tour

★ 4.8 · 147 reviews

  • Nine hours, rainforest waterways from Deeral
  • coral reefs of the outer reef
  • Departs from Cairns
  • Free cancellation
A boardwalk running through dense rainforest with tall trees overhead
2 daysMeals included
2 days

Cairns: 2-Day Great Barrier Reef & Daintree Rainforest Tour

★ 4.7 · 287 reviews

  • Two days, a reef day and a rainforest day
  • Cape Tribulation with a local guide
  • Likely to sell out
  • Free cancellation
A dive briefing on the deck of a yacht with tanks lined up along the rail
Night diveSleep aboard
2 days

Cairns: 2-Day Great Barrier Reef Dive and Snorkel Boat Trip

★ 4.6 · 104 reviews

  • Two days, two days of diving and sailing
  • Small group
  • Likely to sell out
  • Free cancellation

Two questions

Which boat out of Cairns is yours?

Eighteen listings above, and still torn? It comes down to four answers. Give the outer Great Barrier Reef a full day and stop at more than one site. Take the morning run to Green Island and be back by lunchtime. Moor at a pontoon and make it your base. Or take an evening on Trinity Inlet instead. Tell us what matters and we will point at one.

See it before you pay for it

The outer reef, the island, the pontoon

Three of the eighteen, and they ask different things of you. The outer-reef days are the long ones: eight or nine hours, two or three moorings, snorkelling from the boat, lunch aboard. The island half-days are four hours door to door. The pontoon is a place rather than a route, with a glass-bottom boat and a waterslide.

Side by side

The outer reef, an island, the pontoon or the inlet

Four kinds of day, not one product at four prices. The outer-reef days run eight or nine hours at two or three sites. The island trips are shorter. At the pontoon and at Green Island a Cairns glass bottom boat tour is part of the fare. The inlet evenings keep to Trinity Inlet.

Swipe the table sideways →

 From Cairns: Green Island Half-Day Morning CruiseTOP PICKCairns: Silverswift 3 Great Barrier Reef Sites in 1 DayFrom Cairns: Great Barrier Reef Cruise by Premium Catamaran
Price per person$77$216$193
What it isA short morning run out to Green Island and backA full day, three different reef sitesA whole day on the outer reef by catamaran
Time it takes4 hours8 hours9 hours
How far it goesGreen Island, the closest coral cay to the cityThree separate sites on the outer Great Barrier ReefThe outer Great Barrier Reef, one mooring for the day
In the waterSnorkelling from the islandSnorkelling at each stop, diving as an extraSnorkelling from the boat
Lunch on boardNot stated on the listingNot stated on the listingMeal included
What the listing namesA half-day morning departure from CairnsThree Great Barrier Reef sites in one dayA premium catamaran, marked likely to sell out
Rating4.1 across 468 reviews4.7 across 657 reviews4.8 across 3,875 reviews
Booking notesTerms on the listingTerms on the listingTerms on the listing, and it sells out often
  Check dates Book this one→ Check dates
TOP PICK

Cairns: Silverswift 3 Great Barrier Reef Sites in 1 Day

$216
What it is
A full day, three different reef sites
Time it takes
8 hours
How far it goes
Three separate sites on the outer Great Barrier Reef
In the water
Snorkelling at each stop, diving as an extra
Lunch on board
Not stated on the listing
What the listing names
Three Great Barrier Reef sites in one day
Rating
4.7 across 657 reviews
Booking notes
Terms on the listing
Book this one→

Reserve now, pay later · Instant confirmation

From Cairns: Green Island Half-Day Morning Cruise

$77
What it is
A short morning run out to Green Island and back
Time it takes
4 hours
How far it goes
Green Island, the closest coral cay to the city
In the water
Snorkelling from the island
Lunch on board
Not stated on the listing
What the listing names
A half-day morning departure from Cairns
Rating
4.1 across 468 reviews
Booking notes
Terms on the listing
Check dates

From Cairns: Great Barrier Reef Cruise by Premium Catamaran

$193
What it is
A whole day on the outer reef by catamaran
Time it takes
9 hours
How far it goes
The outer Great Barrier Reef, one mooring for the day
In the water
Snorkelling from the boat
Lunch on board
Meal included
What the listing names
A premium catamaran, marked likely to sell out
Rating
4.8 across 3,875 reviews
Booking notes
Terms on the listing, and it sells out often
Check dates
All eighteen listings, compared line by line →

Verdict

Take the Silverswift day for three reef sites

It is the one listing here that moors at three different Outer Great Barrier Reef sites in a single day, eight hours with a snorkel or a dive at each stop, rated 4.7 across 657 reviews at $216. If you want the heaviest record on the page behind you, the nine-hour premium catamaran holds 4.8 across 3,875 reviews at $193.

Check dates and availability→

Before you book

How long the boat is out decides the day

Cairns sells the reef by the hour, and the hours are what separate these eighteen listings. Half a day is four or five hours: the Great Barrier Reef with a guided snorkel from $126, or Green Island from $77. A full day is seven to nine hours out to the outer reef, and the three-site catamaran is $216. Two evening cruises never leave Trinity Inlet, from $54. Read the hours before the fare.

Two-minute check

Do you have to dive to see the reef?

No — each reef listing here is built around snorkelling from the boat, and scuba is an upgrade. A Cairns day tour gives you two or three moorings; the pontoon and the Green Island cruises carry a glass-bottom boat for anyone staying dry.

How many of you are going?Small groups and big catamarans both run here; the two-day listings book out earliest

Where are you staying?Most leave from the marina in the middle of Cairns; one gathers at Deeral

How much of the day are you giving it?Evening runs take under two hours; the outer reef takes seven to nine

Answer the three questions above

You’ll get the one that fits your answers, and the thing about it that catches people out.

Six ways to spend a day on the water

16,264 reviews across eighteen Cairns boat tours

These are the operators’ own numbers on GetYourGuide, shown as published. The most reviewed listing is the premium catamaran, 3,875 reviews at 4.8; the highest score is the half-day with marine biologist guides, 4.9 across 626. We do not average them into a score of our own.

4.7

★★★★★

Based on 16,264
verified reviews

5 ★
76%
4 ★
15%
3 ★
5%
2 ★
2%
1 ★
2%

All eighteen listings on this page, rated on GetYourGuide.

Read all 16,264→
🐟

Cairns: Silverswift 3 Great Barrier Reef Sites in 1 Day

From $216 · 657 reviews

★★★★★

Three sites on the outer reef in one day

The one we point at first: three separate moorings on the outer Great Barrier Reef in a single day rather than one. Eight hours, snorkelling at each stop, diving offered as an extra. Rated 4.7 across 657 reviews.

Every outer reef listing, hour by hour →

🚢

From Cairns: Great Barrier Reef Cruise by Premium Catamaran

From $193 · 3,875 reviews

★★★★★

The most written-about day on the page

Nine hours on the outer reef aboard a premium catamaran, with a meal included and the listing marked likely to sell out. It carries 3,875 reviews at 4.8 — more written records than any other listing here.

The full-day departures, side by side →

🏝

From Cairns: Green Island Half-Day Morning Cruise

From $77 · 468 reviews

★★★★★

A morning out to Green Island and back

Four hours, and the fare this page starts from at $77. Green Island is the closest coral cay to the city, so the crossing is short and the morning leaves the rest of the day to you. Rated 4.1 across 468 reviews.

The Green Island departures, compared →

🏖

Cairns: Great Barrier Reef and Fitzroy Island Boat Tour

From $200 · 239 reviews

★★★★★

An island and a reef mooring in one run

Nine hours that put Fitzroy Island and a stop out on the Great Barrier Reef into the same day, so you get a beach and a mooring instead of choosing between them. Rated 4.6 across 239 reviews.

Fitzroy Island: the listings and what they include →

🌇

Cairns: 90-minute Sunset Inlet River Cruise

From $54 · 243 reviews

★★★★★

Ninety minutes on Trinity Inlet

The shortest and cheapest listing here at $54: an hour and a half on the inlet in the evening, among the mangroves and the harbour. Book it when the daylight hours are already spoken for. Rated 4.6 across 243 reviews.

The short evening runs, and what they cover →

🧭

Cairns: 2-Day Great Barrier Reef Dive and Snorkel Boat Trip

From $470 · 104 reviews

★★★★★

Two days, with a night on the water

The longest and highest-priced listing here at $470: two days on the Great Barrier Reef with a night spent aboard, marked small group, meal included and Free cancellation. Rated 4.6 across 104 reviews.

The dive listings, and what certification they ask for →

What it really costs

What a day on the water costs, line by line

Prices are per person and cover what the listing names: the boat, the crew, the gear. Distance sets the number — half a day to Green Island is $77, a full day at the outer edge $179.

Swipe sideways →

What you doPriceWhat that buysCancellation
Evening on Trinity Inlet$541h 30m, a drink, the waterfrontOn the listing
Green Island, half-day morning$774 hours, catamaran, coral gardensOn the listing
Half-day snorkelling on the reef$1264 hours, small-group guided snorkelOn the listing
Outer reef, full day$1799 hours, lunch aboard, optional scuba upgradeOn the listing
Three reef sites, one day$2168 hours, snorkel or dive at three sitesOn the listing
Two days, a night aboard$4702 days, small group, night dive, berthFree cancellation
The longer days out, and what they cost →

Costs the listing doesn't show you

  • Getting to Cairns is on you. Every fare starts at the boat, and the Frankland Islands trip boards at Deeral, south of town, which is a transfer to arrange.
  • Extras are charged on board. On listings sold as snorkel-and-dive the dive is an upgrade paid on the day, and wetsuit hire, underwater photographs and drinks are settled on the boat.
  • The clock includes the crossing. A nine-hour listing counts the run out to the moorings and back, so the time in the water is shorter than the duration on the card.
  • Lunch is not on every fare. Some listings write in a buffet or a packed lunch; the rest name nothing, and nowhere sells it once the boat has left.

What is genuinely included

  • The return boat trip from Cairns, except the Frankland Islands run from Deeral
  • Snorkelling gear and a guided snorkel on the reef listings that state it
  • Lunch on the listings marked Meal included — buffet, packed lunch or pontoon
  • A glass-bottom boat and a waterslide on the pontoon listing
  • Dinner on the evening catamaran cruise, a drink on the sunset cruise
  • Free cancellation on the two listings that state it

The honest answer

Is the outer reef worth $139 more than Green Island?

Green Island at $77 gives you a catamaran out, coral gardens a short swim from the sand, four hours door to door. The Silverswift day at $216 is eight hours and three separate reef sites instead of one, with a snorkel or a dive at each — which is why it is our pick, rated 4.7 across 657.

What makes it worth it

  • The boats leave from the middle of Cairns, a walk from the Esplanade, with no transfer to pay
  • Eighteen listings, from ninety minutes on the inlet at $54 to two days aboard at $470
  • One listing moors at three separate outer reef sites in a single day for $216
  • 9 of the 18 listings state a meal is included, so no packed lunch needed
  • A pontoon with a glass floor and a water slide is $200; a sailing boat $203

Keep in mind

  • The outer reef days run seven to nine hours, most of it afloat
  • The Green Island mornings and the half-day snorkels cover four to five hours instead
  • Diving is an extra on the snorkelling listings, and the dive listings name the certification
  • Only 2 of the 18 listings state Free cancellation
  • 7 of the 18 listings are marked likely to sell out, so book weeks rather than days ahead
The honest answer, at length →

The day, hour by hour

Check-in, the run out, the moorings, the way back

  1. Hold the date while the week settles

    Read the cancellation line and the sell-out label on your listing once before you pick a date.

  2. Swimwear, a towel, and something with sleeves

    The long days are spent on deck and in the water. Gear comes with the reef listings; the evening runs ask nothing of your swimming.

  3. The marina, the terminal, or the river at Deeral

    Most listings gather in the middle of Cairns, at the Marlin Marina or the Reef Fleet Terminal. The Frankland Islands run starts south, at Deeral.

  4. Forty-five minutes, or an hour and a half

    Green Island is the closest coral cay, which is what makes a four-hour morning possible. The outer reef is further out both ways.

  5. Moorings, gear, and the guide

    Then the part you paid for: one mooring for the day, two, or three, depending on the listing. Gear and a briefing come with the reef departures.

  6. A beach, a boardwalk, or a platform on the water

    The island listings put you ashore in the middle of the day. The outer reef listings keep you on the boat or the pontoon instead.

  7. Back at the terminal, or still on the inlet

    The full days are back in Cairns in the late afternoon. The evening listings start about then: ninety minutes at $54, or dinner aboard for $102.

A catamaran moored at a Great Barrier Reef site on a day trip out of Cairns

How the day runs

Pick the length of the day, not the month

Every listing here is one of three lengths of day, and that is the choice worth making first. The full days are seven to nine hours out to moorings on the Outer Great Barrier Reef, and the Silverswift catamaran fits three sites into one of them. The half-days are four or five hours: a small guided group, the all-inclusive half-day with marine-biologist guides, or the morning catamaran to Green Island. Two evening cruises never leave Trinity Inlet, and two trips run over two days. The crossing is counted inside the hours on the card, so read the departure time on your own listing.

On the water

What a day out of Cairns actually looks like

A white catamaran moored in open water over the reef

The boat, moored on the reef

Nine hours out, a meal included on most.

Snorkellers in the water beside the platform at the back of a moored boat

In the water, off the back

Gear and a briefing come with the reef days.

A large moored pontoon platform on the outer reef with boats alongside

The pontoon as a base

A platform on the reef, seven and a half hours.

A sandy beach on Green Island with trees behind it and shallow water in front

Green Island, the closest cay

The short crossing makes a four-hour morning possible.

What it's like

One reef, two kinds of day, and a fare about distance

Everyone arrives in Cairns with the same picture: a boat, a ladder off the back of it and the Great Barrier Reef underneath. What the picture leaves out is the question that sorts the eighteen listings on this page. How far out do you want to go, and how much of the day do you want to spend on the water? The fare, the vessel and the hours all follow from that answer.

The boats leave from the marina in the middle of the city, and that gives the page two shapes: half-days of four or five hours, and full days of seven to nine that run out to the Outer Great Barrier Reef. Across all eighteen listings the fares run from $54 to $470, the boat tours themselves sit between $77 and $216, and the durations run from an hour and a half to two days.

The full days out to the outer reef are the heart of the page. Our top pick is the Silverswift catamaran at $216, eight hours, rated 4.7 across 657 reviews, and the reason is arithmetic: it moors at three different reef sites in one day where most listings visit one or two. Beside it are the premium catamaran at $193 for nine hours, rated 4.8 across 3,875 reviews, and a full day on a superyacht at $193 with two outer-reef sites and a buffet lunch.

One more full day names its moorings outright: the snorkel and dive cruise at $203 visits two sites the operator calls Wonder Wall and Aquarium, on the outer edge of Upolu Reef, plus Upolu Cay. Diving there and on most of the others is an upgrade you pay for on the day, so read the dive line before you book if that is what you came for.

The islands are the other half of the page, and a different day out. Green Island is a tropical island with coral gardens around it, and it has the widest choice: a five-hour cruise at $79, a four-hour morning catamaran at $77, which is the fare this page quotes from, and a nine-hour sailing trip at $203 on a 16-metre boat that takes 25 guests. Fitzroy Island comes paired with the Moore Reef pontoon in a nine-hour listing at $200 with a buffet lunch.

The pontoon is the listing for people who would rather not spend the day on a moving deck. At $200 for seven and a half hours it is a multi-level platform moored on the outer reef, with snorkelling, a glass-bottom boat, a waterslide and lunch. You come and go from the water as you like.

If a whole day is more than you want, three listings are built as half-days. The four-hour snorkelling tour at $126 runs a small guided group with a choice of moorings. The five-hour all-inclusive half-day at $147 is rated 4.9 across 626 reviews, the highest score on this page, with marine-biologist snorkel guides and 15 moorings to pick from. The Frankland Islands day at $182 takes the long way round, leaving from Deeral and cruising rainforest waterways before it reaches the coral.

Two listings never leave the inlet, and they are the cheapest way onto a boat here. The 90-minute sunset cruise along Trinity Inlet is $54, rated 4.6 across 243 reviews, with a drink and the city skyline. The dinner cruise is two and a half hours at $102, states Free cancellation and asks to be booked at least two hours ahead. At the far end sit the two-day trips: reef plus the Daintree Rainforest at $298, and a dive and sail with a night aboard at $470.

A full day on the Outer Great Barrier Reef

Three decks that go to the same place, and what separates them

All three leave Cairns in the morning, spend the day at moorings on the outer reef and are back that evening, with a meal in the fare. What separates them is what you stand on.

Practical

Plan the day

Three things decide which tour in Cairns suits you: how far out you go, how the boat fits your group, and whether you want to swim.

Our top pick

The Silverswift catamaran, $216, eight hours, rated 4.7 across 657 reviews — three Outer Great Barrier Reef sites in one day.

The lowest fare on the page

The 90-minute sunset cruise on Trinity Inlet, $54, rated 4.6 across 243 reviews, with a drink.

The cheapest way out to an island

The four-hour morning catamaran to Green Island, $77, with snorkelling off the island. The fare this page quotes from.

The highest rated

The all-inclusive half-day on the outer reef, five hours, $147, rated 4.9 across 626 reviews, with marine-biologist snorkel guides.

A deck that stays still

The pontoon at $200 and the Green Island cruise at $79 both write a glass-bottom boat into the fare.

Two days instead of one

Reef plus the Daintree Rainforest and Cape Tribulation at $298, or two days diving and sailing with a night aboard at $470.

Every reef trip compared →

Best time

When to come

The eighteen listings run all year, so the question is how far ahead to book, not whether a boat goes. What changes is how many people are on the water.

Dec – Feb

Australian school holidays

The southern summer holidays fill the morning departures, so lock in the half-days and the pontoon early. The inlet evenings are the easiest to get at short notice.

Mar – May

Quieter weeks, full timetable

Calmer weeks for bookings rather than for the sea: the same eighteen listings run, and short notice is usually enough — the small-group boats included.

Jun – Aug

The busiest stretch of the year

Where we would aim: operators run a full timetable, so the widest choice of moorings, dives and island days is available. The listings marked likely to sell out go weeks ahead.

Sep – Nov

Still busy, then easing

Late-September school holidays keep the morning boats full; after that the premium catamaran and the Silverswift day are bookable a week or two out.

How the cruises differ from one another →

Worth knowing

Six things that aren't in the listing

01

The fare is a question of distance and hours, not of how good the reef is. A half-day to Green Island is $77; a half-day on the outer reef is $126 or $147; a full day out there runs $179 to $216.

02

The hours on the card include the crossing. A nine-hour listing counts the run out to the moorings and back. That is why the three-site catamaran at $216 is the arithmetic pick: eight hours split across three moorings instead of one.

03

A dive is usually an upgrade, not part of the fare. Listings sold as snorkel-and-dive let you add one on the day, certified or introductory, and pay on the boat. The two-day trip at $470 is the one built around it.

04

A pontoon is a different day from a boat. For $200 you get a multi-level platform on the outer reef with a glass-bottom boat, a waterslide and lunch, and you decide when to get in the water.

05

Group size is written on the listing, and it changes the day. The sailing trip to Green Island takes 25 guests at $203; the big catamarans carry a lot more people for a similar fare.

06

Book the date, not the discount. The fare is the same at the marina desk or on this page, seven listings are marked likely to sell out, and two ask to be booked hours ahead.

Common questions

Cairns boat tours, answered straight

Which tour should I book if I only have one day?

The Silverswift catamaran at $216, rated 4.7 across 657 reviews: eight hours, three different sites on the Outer Great Barrier Reef, snorkelling at each and a dive you can add on the day. If you want the listing most people have already been on, the premium catamaran is nine hours at $193, rated 4.8 across 3,875 reviews.

What does a boat tour cost?

The eighteen listings run from $54 to $470. The reef and island boat tours, which is what most people mean, sit between $77 and $216. Below that are two evening cruises on Trinity Inlet, $54 and $102; above it the two-day trips, $298 with the Daintree Rainforest and $470 for diving with a night aboard.

Do I need to know how to dive?

No. The reef listings are built around snorkelling, and the ones that state it include the gear. Several are sold as snorkel-and-dive, which means a dive is an upgrade added on the day, certified or introductory, and paid for on the boat. The trip built around diving is the two-day one at $470, with a night aboard and a night dive.

Green Island or the outer reef?

Two different days. Green Island is a tropical island with coral gardens around it, close enough for half a day: $77 for the four-hour morning catamaran, $79 for the five-hour cruise, or $203 for nine hours under sail. The Outer Great Barrier Reef is a full day of seven to nine hours with the crossing inside it.

Is there a half-day option?

Three of them. The four-hour snorkelling tour at $126, rated 4.7 across 1,931 reviews, runs a small guided group. The five-hour all-inclusive half-day at $147 is rated 4.9 across 626 reviews — the highest score on this page — with marine-biologist snorkel guides. And the four-hour morning cruise to Green Island is $77, the fare this page quotes from.

What is the pontoon, and is it worth it?

A multi-level platform moored on the outer reef: seven and a half hours at $200, rated 4.5 across 403 reviews, with lunch. Instead of swimming from the back of a boat on a schedule you get a deck with a ladder, a glass-bottom boat, a waterslide and somewhere dry to sit. It suits a group where not everyone wants to be in the water all day.

Do you compare land tours from Cairns as well?

No, this page is boats. The one listing that puts a day ashore beside a day on the water is the two-day package at $298: a day on the outer reef and a day in the Daintree Rainforest.

Why trust this page

How we put this together

Checked, not guessed

Durations, inclusions and operator wording come from the live listings for each tour. Prices and ratings are read off the same listings and updated with the page.

How we pick

Every listing here is a boat trip out of Cairns, and we kept the range wide: full days on the outer reef, the pontoon, half-day snorkelling, the islands and the evening cruises. Nobody pays to be featured.

We say what a tour can and cannot arrange

A tour gives you a berth, a crossing to a mooring, snorkelling gear, a guide and a meal. Where a listing is sold on coral gardens or marine life, the operator is describing the site, not promising it.

Cairns, stated plainly

Cairns sits on Trinity Inlet in Queensland, and the boats leave from the marina in the middle of it. The outer reef moorings are a full day away; Green Island and Fitzroy Island are half a day.

Snorkellers in the water beside a reef boat moored at the Great Barrier Reef off Cairns

The answer

Settle how far out you are going, then pick your deck.

All eighteen tours end up in the same water: the Great Barrier Reef off a tropical Queensland city, reached from a marina on Trinity Inlet. What you choose is the distance and the hours — a half-day to Green Island, a full day at three moorings, a pontoon you stay on, or two days with a night aboard. Boat tours start at $77.

Check dates and availability→ Free cancellation on the listings that state it · Reserve now, pay later
★

Cairns: Silverswift 3 Great Barrier Reef Sites in 1 Day

★ 4.7 · 657 reviews · Free cancellation 24 h

$216our top pick Check dates→