Cairns & Port Douglas

15 Best Great Barrier Reef Tours from Cairns

The reef days from Cairns and Port Douglas compared: outer-reef catamarans, small-boat snorkel charters capped at a dozen passengers and dive add-ons for the certified. The outer edge runs clearest; the longer steam out buys the visibility.

1.Great Barrier Reef Snorkeling and Diving Cruise from Cairns

Experience the Great Barrier Reef with a full-day snorkeling and diving cruise from Cairns, including reef visits, a barbecue lunch, and optional helicopter flight.

Most Popular★ 4.5

“I am an inexperienced snorkeler, so I was doubtful when I booked this cruise. My partner really wanted to do it though. I was pleasantly surprised. They had a guide in the water with a floater who took me around the great barrier reef so…”

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4.Cairns: Outer Edges of The Great Barrier Reef Scenic Flight

Experience the Great Barrier Reef from the sky with a 40-minute scenic flight from Cairns, offering stunning views, expert commentary, and wildlife spotting.

★ 4.9

“The flight was awesome. I went by myself and had a few strangers that also flew with me and we all had a great time. Our pilot was great and explained stuff as we passed over it and we saw lots of amazing views. Took…”

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7.ABC Snorkel Charters Port Douglas Snorkelling max 12 passengers

Discover the Great Barrier Reef with a small group snorkeling tour from Port Douglas, guided by marine biologists, focusing on remote sites and personalized service.

★ 5.0

“Fantastic - truly a small group (8 guests) with wonderful crew! We were taken to two snorkel areas and saw so many different types of fish and coral. The crew were very professional and well informed and split us into groups of four to snRead…”

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8.Cairns: Great Barrier Reef Full-Day Tour

Experience the vibrant coral reefs and marine life on a full-day snorkeling tour from Cairns, including quality equipment, guided tours, and a tropical buffet.

★ 4.6

“Wonderful day out for my teen daughter, partner and I. Crew were super friendly and knowledgeable. We chose to snorkel and many many thanks to Laura for making our day so great. Laura was a wonderful help with accommodating my medical condition, she really made…”

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9.Calypso Outer Great Barrier Reef Cruise from Port Douglas

Experience the stunning Great Barrier Reef from Port Douglas with this full-day, all-inclusive cruise offering snorkeling, diving, and expert guides.

★ 5.0

“Crew, boat, and snorkeling was great. The bathrooms were clean and well maintained. The food quality was less than expected. The meal is portions of cold meats and potato salad. We had much better food in Hervey Bay Whale Watching.”

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10.From Cairns: Great Barrier Reef Half-Day Snorkeling Tour

Discover the Great Barrier Reef on a half-day snorkeling tour from Cairns with small group guides, stunning marine life, and personalized experiences for $118.

★ 4.7

“Everything was wonderful, the guides were helpful and friendly, it was a ton of fun. I just wish I had booked an even longer one, the snorkeling zoomed by! It was great!”

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11.Great Barrier Reef Full Day Tour from Cairns

Discover the Great Barrier Reef from Cairns with this full-day tour offering snorkeling and diving at two reef locations. Enjoy meals, expert guides, and marine wildlife encounters.

★ 4.5

“The snorkeling experience was amazing. The crew was very professional and gave us enough time in the reefs to explore at marine life. Special shoutout to Miwa who was our guide. We were non swimmers and neverous about getting Read more”

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

Discover the Great Barrier Reef with a full-day luxury tour from Cairns, including snorkeling at two sites, a gourmet BBQ, and complimentary wine.

★ 4.7

“Had a fantastic time out on the reefs. The boat is huge and holds a lot of people but really didn’t notice it once in the water as everyone could spread out quite a bit. Enjoyed the small group tour with the marine biologist that…”

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14.Cairns: Great Barrier Reef Cruise & Scenic Helicopter Flight

Experience the Great Barrier Reef from Cairns with a full-day cruise, snorkeling, optional diving, and a scenic helicopter flight—all in one adventure.

★ 4.7

“Excursion which is "must have" when you are in Cairns - nice ship, beautiful ship, amazing helicopter fly. All day was brilliant and BBQ lunch on ship was delicious. We recommend this trip for anyone!:)”

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More Great Barrier Reef Tours from Cairns

4.5Sunlover Reef Cruises Cairns Great Barrier Reef Experience$211.59 4.7Cairns: Great Barrier Reef Snorkeling Cruise with Lunch9 hours$127 4.5Quicksilver Great Barrier Reef Snorkel Cruise from Port Douglas$233.10 4.4Cairns: Fitzroy Island Ferry w/ Snorkel, Lunch, Tour Options$69 4.9Port Douglas: Outer Great Barrier Reef Snorkeling Cruise8 hours$210 5.0Ocean Free 25 guest Great Barrier Reef & visit Green Island Tour$200.11 5.0Full Day Low Isles Sailing & Snorkelling Cruise from Port Douglas$243.86 4.7Cairns: Silverswift 3 Great Barrier Reef Sites in 1 Day8 hours$209 4.8Port Douglas: Quicksilver Outer Barrier Reef Full-Day Cruise7 - 9 hours$195 5.0Silversonic Outer Great Barrier Reef Cruise from Port Douglas$192.04 4.8From Cairns: 40-Min Scenic Reef Window Seat Airplane Flight40 min$190 4.7Port Douglas: Low Isles Glass Bottom Boat & Snorkeling Tour4 hours$135 4.9Port Douglas: Outer Barrier Reef Snorkel and Dive Options7.5 hours$174 5.0Outer Reef Mackay Cay Sail & Snorkel Adventure from Port Douglas$243.86 4.5Silverswift Dive and Snorkel Great Barrier Reef Cruise$212.30 4.5All Inclusive Day Tour to Frankland Islands Great Barrier Reef$179.31 5.0Full-Day Great Barrier Reef Sailing Trip from Cairns$179.31 4.8Cairns: Green Island & Great Barrier Reef Sailing Tour9 hours$183 5.0Half Day Low Isles Snorkelling Tour from Port Douglas$175.72 5.0Cairns Half Day Tour a Great Barrier Reef Snorkeling Experience$128.39 4.0Snorkelling and Glass Bottom Boat at Green Island from Cairns$107.59 4.9Cairns: All-Inclusive Great Barrier Reef Half-Day Snorkeling5 hours$140 5.0Afternoon Low Isles Snorkelling & Sunset Sail from Port Douglas$243.86 4.5Cairns: Outer Great Barrier Reef Pontoon with Activities7.5 hours$208

Explore Cairns & Port Douglas

The reef out front, the oldest rainforest behind and a railway between.