11 Snorkeling Trips in Cairns That Survive a Second Look

1.Outer and Coral Cay Snorkel and Dive Cruise

★★★★★★★★★★4.8 · 1,467 reviews · 9 hours - 1 day · from $183Our pick

Join Ocean Free and Ocean Freedom from Cairns for a full reef day aboard a fast 20-metre catamaran. You’ll visit Wonder Wall and Upolu Coral Cay, snorkel with marine guides, ride a glass-bottom boat, and choose optional certified or introductory scuba. Crew members such as Ollie, Paul, Tori, and Blair are praised for calm, careful instruction.

“I had a great diving time with ocean freedom. Ollie is a very nice diving instructor. He’s patient and attentive to detail. I felt safe and well taken care of throughout the dives. The staff were also great! They made the whole experience so enjoyable.”

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2.Green Island Snorkelling or Glass Bottom Boat

★★★★★★★★★★4.4 · 1,284 reviews · 5 - 9 hours · from $73

Take a 45-minute catamaran from Cairns to Green Island, a 6,000-year-old coral cay with rainforest, white beaches, and reef life close to shore. Choose snorkelling gear or a glass bottom boat tour, then add a pool visit, crocodile habitat, or other activities. The day is self-guided, with clear boat times and friendly crew support.

“We liked the island . Glass bottom boat was very good , saw lots of fishes and varieties of corals . Did sea walking”

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3.Snorkel & Dive the Reef: Sustainable, Scientific & Cultural Tour

★★★★★★★★★★4.5 · 841 reviews · from $232

Travel by fast catamaran from Cairns to Reef Magic’s Marine World platform, where you can snorkel in a sheltered coral lagoon, join marine biologist talks, and use the glass-bottom boat, semi-submersible, and underwater observatory. Optional scuba sessions, helmet walks, and helicopter flights cost extra. Guides including Ella, Ethan, Kaitlin, and Takuya have earned praise for patient help in the water.

“It was a good experience They took participant safety very seriously Well organized - friendly and helpful They went out of the way to make sure everyone got something out of the trip. The views from the chopper were amazing Highly recommend the team”

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4.Fitzroy Island Ferry w/ Snorkel, Lunch, Tour Options

★★★★★★★★★★4.4 · 715 reviews · from $69Best value

Take Sunlover Reef Cruises from Cairns to Fitzroy Island for beaches, rainforest walks and 4.5 hours of free time. Add snorkel gear, a picnic lunch or a glass-bottom boat ride. Guides including Andrea, Victor, Georgina and Carmen have helped make the reef activities clear, friendly and easy to follow.

“Fantastic!!! The crossing is quite fast and we find ourselves in a beautiful and totally exotic place. The free time left on the island allows both a small hike in the forest (very well marked) and snorkling in different places. An unforgettable day with landscapes worthy of the most beautiful paradisiacal islands.”

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5.Snorkelling and Glass Bottom Boat at Green Island from Cairns

★★★★★★★★★★4.0 · 386 reviews · from $107

Take a fast catamaran from Cairns to Green Island, the Great Barrier Reef’s only coral cay with rainforest. Your day includes snorkeling equipment, an unguided beach snorkeling session, a glass-bottom boat ride, an island walk, pool access, and return transfers. Guided snorkeling and other activities cost extra.

“A great trip - We’ve done it twice now. Be sure to go on glass bottomed boat trip and the snorkelling. The food establishments including those selling ice cream, seem to shut early - mid afternoon. Boat trip from Cairns to Green IslanRead more”

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6.Snorkelling or Glass Bottom Boat at Green Island from Cairns

★★★★★★★★★★4.0 · 282 reviews · from $87

Take a fast catamaran from Cairns to Green Island, a 6,000-year-old coral cay wrapped in rainforest. Choose beach snorkelling or a glass-bottom boat trip, then use the island pool, walk the forest paths, and enjoy the visitor facilities. Marine biologist Clarissa offers an informative reef talk on some departures.

“This trip is highly recommended for families who want to experience reef with high comfort. Very easy to navigate.”

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7.Fitzroy Island Ferry, optional lunch, tours, snorkel

★★★★★★★★★★4.3 · 216 reviews · from $69

Take Sunlover Reef Cruises from Cairns to Fitzroy Island for four and a half hours of free time. Choose transfers only, or add a picnic lunch box, snorkeling equipment, and a glass-bottom boat ride. Walk to Nudey Beach, explore rainforest tracks, or snorkel straight from the shore.

“Self guided snorkeling and lunch buffet was the best!”

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8.Coral Sea Dreaming Overnight Dive, Snorkel and Sail

★★★★★★★★★★5.0 · 44 reviews · from $472Top rated

Join Captain Justin and his crew, including Marina and Chad, aboard Coral Sea Dreaming for a two-day Great Barrier Reef trip from Cairns. With only 12 passengers, you get more time in the water, five chances to snorkel or scuba, meals, and an overnight stay on a clean, air-conditioned boat. Introductory and certified scuba are optional extras.

“Very nice snorkeling sites and amazing crew. Food was simple but nice and the boat was clean with air conditioning.”

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9.Fitzroy Island: Full-Day Ferry & Snorkel Safari Guided Tour

★★★★★★★★★★4.4 · 37 reviews · 10 hours · from $118

Take the 8:00 AM ferry from Cairns to Fitzroy Island, then spend eight hours swimming, walking, relaxing, and snorkeling. Your 10:00 AM guided safari meets at FISH and includes equipment. Guide Elisa has earned particular praise for her clear, caring help, but this outing suits confident swimmers best, especially when seas are rough.

“it did not state when booked it was for experienced Snorkelers. It was a bad day raining heavily, thunder and lightning predicted. had the thunder but no lightning. It was a small group but I did not have enough confidence to go in. Big waves. I stayed on boat with Skipper and she told me it was for experienced Snorkelers. I was very disappointed has was reason I booked the trip. they should specify standard required before u book.”

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10.Green Island with Snorkelling and Glass Bottom Boat

★★★★★★★★★★4.3 · 36 reviews · from $99

Cruise from Cairns to 6,000-year-old Green Island, then use your included snorkeling gear and glass bottom boat tour to see coral gardens and marine life. You can also follow the self-guided eco walk, swim in the Great Adventures guest pool, or buy lunch and drinks on the island. Boat times allow a shorter or longer stay.

“The boat ride and all activities were east find a start. We got to see many magnificent things such as remoras. parrotfish, sea turtles, reef sharks etc from both the glass boat and the snorkel. Definitely a once in a lifetime must-try experience. Thanks to all the staff for a great time.”

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11.Private Helicopter Tour: Reef Island Snorkeling and Gourmet Picnic Lunch

★★★★★★★★★★4.5 · 22 reviews · from $833

Take a 25-minute private helicopter flight from Cairns to Vlasoff Cay for two hours of snorkeling, swimming, and a gourmet picnic with sparkling wine. Your pilot provides the gear, umbrella, chairs, and blanket. If the public cay is occupied, you may visit Turtle Beach or receive an extended reef flight instead.

“The people at the tour company were very friendly and comfortable to be around. The food was fantastic! We weren't exactly sure what we expected, but this experience far exceeded everything we could have imagined! Highly recommend it to anyone wanting a "private" experience on the Great Barrier Reef. Much better than riding 2 hours each way in a boat and having to spend 4hrs on a pontoon with numerous other vacationers.”

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