Cairns Tickets
4.5(4,174)

Explore the Outer Great Barrier Reef: Book Your Tour Today

Last minute availability.
Last minute availability.
Best deals & discounts
Best deals & discounts
24/7 support across the globe
24/7 support across the globe
Snorkeler near sea turtle in clear waters of Outer Great Barrier Reef.
























































From happy customers

Loved by 45 million+
Chelsea O Marsh
AU

Chelsea

Australia
Sep 2025
5/5

review-image
I really enjoyed my dah trip to Fitzroy island! The staff were lovely from start to finish, they were very helpful - sharing information about the island and the marine life. The island it self was lovely - my second time visiting and I'll definitely be back again.
aimee fortescue
AU

Aimee

Australia
Aug 2025
5/5

review-image

review-image

review-image

+2 more

We had a really lovely time visiting fitzroy Island yesterday. On our way back to cairns we sat on the upper sun deck with great views this only got bettter when we had an unexpected visitor join us 🐳🐋 The crew promptly turned the engines off and gave us an informative commentary on the humpback whales migration. This was such an unexpected treat not to mention a life long bucket list goal. All staff were friendly and professional. The boat was immaculately clean we will definitely be booking future adventures with this company and recommending to family and friends. Until next time.
Catherine Brown
GB

Catherine

United Kingdom
Oct 2025
5/5
The most amazing day! Every part was bang on time. Fabulous staff - friendly, efficient and knowledgeable. Would most definitely recommend.
Bergeret stephane

Bergeret

Jul 2025
4/5
The glass-bottom boat trip, which although short, allowed us to get a little further out on the reef and get some explanations. This enabled us to see a turtle and clams in particular.
Narina Prodger
AU

Narina

Australia
Aug 2025
5/5
Friendly staff, beautiful catamaran, not overcrowded and well organised tour. We had a great day on the reef and would highly recommend down under reef cruise by Headout 😊
Jeanne Valette
FR

Jeanne

France
Dec 2025
5/5
It was magical, thanks to the driver and the team for offering us this exceptional moment! We had a wonderful time
Denisse Herrera Zuniga
AU

Denisse

Australia
Nov 2025
5/5
The team is super friendly, the views were amazing, they show us beautiful places of the barrier reef, still feels like a dram how beautiful it is
Tamara Norden
AU

Tamara

Australia
Nov 2025
5/5
Cruise in and out was amazing, we saw Sea turtles mating on the cruise back. Glass bottom boat was incredible, a great view of the coral reef and creatures below. The snorkelling was amazing, I spotted a sea turtle in the area close to the jetty...I was able to capture an underwater picture of the sea turtle. Box lunch was fantastic, very big lunch which satisfied the hard earned appetite. Sunlover staff were very friendly and did an amazing job all day 👏 Entire day was well worth it, would do it again. Highly recommend.

Top things to do in Cairns

Day trip to the Outer Great Barrier Reef

The Outer Great Barrier Reef is one of the best places in the world to see colorful corals, tropical fish, sea turtles, and more. A UNESCO World Heritage Site, it’s the perfect spot for a once-in-a-lifetime adventure. Whether you want to snorkel, try scuba diving, or enjoy the views from the boat, here's what to expect on your trip.

Why visit the Outer Great Barrier Reef?

Snorkeler with a large fish at Great Barrier Reef during full day cruise.
  • Best visibility: Waters are deeper and clearer, ideal for snorkelers and photographers.

  • Healthier coral systems: Less tourist pressure means more vibrant coral formations and marine diversity.

  • More marine life: Outer reefs attract larger species like turtles, reef sharks, rays, and big schools of fish.

  • Full-day adventure: You’ll spend more time at the reef, often visiting multiple sites.
  • Great for divers and snorkelers: Certified dive and guided snorkel experiences available on most tours.

What to expect on an Outer Reef Tour

Tourists relaxing on bean bags on deck during Great Barrier Reef cruise from Cairns.
Two clownfish nestled in purple sea anemone, Great Barrier Reef.
Divers exploring coral reef with colorful fish, Cairns to Great Barrier Reef snorkelling tour.
Manta ray swimming over coral reef with diver in Great Barrier Reef, Australia.
Cruise passengers enjoying drinks and snacks on Great Barrier Reef tour.
1/5

Fast travel to remote reefs

Most boats take 90 minutes to 2 hours to reach the Outer Reef. High-speed boats ensure a smooth ride with onboard comforts like air-con, sun decks, and marine briefings.

Spectacular reef systems

Dive or snorkel over drop-offs, bommies, and coral gardens teeming with fish. Visibility often exceeds 20 meters, especially between June and October.

Guided snorkel & dive options

Expert guides lead small groups through the best coral sections, pointing out camouflaged creatures and rare corals. Ideal for first-timers or anyone looking for a safer, richer reef experience.

Frequent marine encounters

You’ll likely spot turtles, reef sharks, parrotfish, giant clams, and maybe even a manta ray or two. These outer sections draw **a wider mix of reef species.

All-day comfort and service

Full-day tours typically include morning tea, a hearty buffet lunch, afternoon snacks, and optional add-ons like underwater photography or scuba upgrades.

What’s included in Outer Reef Tours

Tourists preparing for a dive on a Great Barrier Reef cruise.

Outer Reef day tours typically include everything you need for a seamless marine adventure. You can expect:

  • Return transfers from Cairns
  • Reef access at 1–3 Outer Reef sites
  • Snorkeling equipment and floatation aids
  • Buffet lunch, snacks, and tea/coffee
  • Guided snorkel or intro dive (on select tours)
  • Reef interpretation by marine biologists
  • Add-ons which depend on the chosen tour
  • Marine park fees and all permits included

Best places to snorkel in the Outer Great Barrier Reef

Green sea turtle swimming near coral reef, Great Barrier Reef.
Colorful tropical fish swimming around vibrant coral at Atlantis Aquarium Madrid.
Manta ray swimming over sandy ocean floor.
1/3

Norman Reef

Norman Reef, with crystal-clear water and excellent visibility, hosts vibrant marine life, colorful corals, and occasional green sea turtles. Its varying depths suit both beginners and confident swimmers.

Saxon Reef

Saxon Reef, between Norman and Hastings, is quieter but rewarding, with bommies, coral walls, and abundant fish. You may see anemonefish, giant clams, or a reef shark. Calm waters and healthy coral make it a great all-rounder.

North Hastings Reef

North Hastings has shallow lagoons and deeper drop-offs, ideal for snorkel tours. Spot parrotfish, sea cucumbers, and seasonal manta rays.

Tips for visiting the Outer Reef

Want to make the most of your Outer Reef trip? Here’s how to plan smarter:

  • Choose your season: Best visibility is between June and October when the water is clearest.
  • Bring reef-safe sunscreen: Protect the coral ecosystem. Look for zinc-based or biodegradable options.
  • Prepare for sun and sea: Bring a hat, towel, reusable water bottle, and motion sickness meds if needed.
  • Try a guided snorkel tour: It’s the best way to safely see more and learn about the reef ecosystem.
  • Book early in peak months: Popular tours sell out fast, especially from June to September.

Plan your visit to Outer Great Barrier Reef

Snorkeler swimming with a large fish at the Great Barrier Reef near Cairns.
  • Peak season (June – October): Clear skies, calm seas, and excellent visibility make this the ideal time for snorkeling. It’s also stinger-free, so no suits required.
  • Shoulder season (April – May, November): Fewer crowds and still-great weather. You’ll get good underwater conditions and better tour availability.
  • Wet season (December – March): Expect high humidity, tropical showers, and reduced visibility. Snorkeling is still possible, but trips are more weather-dependent.
Guests relaxing on cruise ship deck overlooking the Great Barrier Reef, Australia.

Departure from Cairns: Most full-day snorkeling tours to Norman, Saxon, and Hastings reefs leave from Cairns Reef Fleet Terminal, with a 90-minute high-speed catamaran ride.

Snorkelers giving OK sign near boat at Outer Great Barrier Reef, Cairns trip.

Advance booking benefits: Outer reef tours fill up fast, especially in peak season. Booking early secures your spot, gives you better tour choices.

Woman applying sunscreen on arm at a sunny beach.
  • Reef-safe sunscreen
  • Swimsuit and towel
  • Light cover-up or rash guard
  • Motion sickness tablets (if you’re prone)
  • Waterproof camera or phone case
  • ID and booking confirmation (digital is fine)

Frequently asked questions about Outer Great Barrier Reef Tours

What is the Outer Great Barrier Reef?

It’s the section of the reef system located farther offshore, which is less disturbed, more biodiverse, and known for excellent visibility.

How far is the Outer Reef from Cairns?

About 60–90 minutes by boat, depending on the reef site and operator.

 Is it safe for first-timers?

Yes. Most tours cater to all levels with safety briefings, life vests, and expert supervision.

What’s the best time to go?

Clearer water and calm seas usually occur from May to October.

Are diving and snorkeling both available?

Yes! Most tours offer both, along with guided reef talks and optional upgrades.

Can I bring my kids?

Yes. Many tours are family-friendly and include shaded areas, kids’ gear, and calm snorkel zones.

Read More

Boats near the shore of Fitzroy Island with lush green hills in the background.

Fitzroy Island

Snorkelers preparing on Low Isles beach, Port Douglas cruise.

Port Douglas

Catamaran approaching Green Island pier on Full Day Reef Cruise, Australia.

Green Island Cruises

Snorkeler with sea turtle at Moore Reef, Great Barrier Reef day cruise.

Scuba Diving Tours