The 15 Best Reef Dives from Cairns

1.Great Barrier Reef Snorkeling and Diving Cruise from Cairns

★★★★★★★★★★4.5 · 3,714 reviews · from $190Our pick

Spend about 8.5 hours aboard Evolution from Cairns, visiting two outer reef sites near Saxon, Norman, or Hastings Reef. Snorkel with supplied gear, add an introductory or certified scuba session, or book a 10-minute helicopter flight. Crew members such as Indy and Phil may add marine-life talks.

“Fantastic experience. The staff onboard the ship were extremely nice, helpful and encouraged all to snorkel and see the coral and sea life. Kudos to each one of the staff for their support. Additionally, we took the helicopter ride to see the reef and it was a sight to behold.”

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2.Ocean Freedom Great Barrier Reef Luxury Snorkel and Dive Cruise

★★★★★★★★★★5.0 · 1,895 reviews · from $181Top rated

Board the 65-foot Ocean Freedom catamaran in Cairns for a full reef day at Upolu Cay and Wonder Wall. You get guided snorkeling, a glass-bottom boat tour, six hours on the reef, buffet lunch, equipment, and crew help in the water. Certified and introductory scuba options cost extra.

“Staff was super nice and everyone was super kind. Both snorkel sites were amazing and we saw a blue star fish and a few turtles. It was a memorable trip. However a few suggestions: (1) Boat was super crowded. If you prefer a small group, would suggest the ocean free (same company but smaller boat) which is a smaller 25 person total for the boat. It feels less luxurious when it is so crowded.. (2) Also was not a fan of the going, barefoot on the boat.. It was quite disgusting by the end of the trip. They should tell us to bring water shoes. (3) Just a suggestion, but…”

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3.Cairns: Premium Snorkelling and Diving Reef Day Trip

★★★★★★★★★★4.7 · 1,528 reviews · 8 hours · from $166

Set out on AquaQuest from Cairns at 8:30 AM for two outer reef sites at Norman, Saxon, or Hastings reefs. Snorkel with guides, use provided wetsuits and prescription masks, and enjoy meals, hot showers, and optional scuba sessions.

“The staff was amazing and the dives were beautiful!”

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4.Cairns: Outer and Coral Cay Snorkel and Dive Cruise

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

Cruise from Cairns on a fast 20-metre catamaran to Upolu Reef and Cay. Expect guided snorkelling, glass-bottom boat trips, optional certified or introductory scuba sessions, and a generous lunch. Instructors including Ollie, Paul, and Tori help keep beginners calm and well supported.

“if you want a great safe introductory dive , you may trust this crew, very professional and friendly. if you like snorkel , they will show you the good places on the reef. very worthy experience .”

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

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

Spend about eight hours traveling from Cairns to Reef Magic’s outer reef platform. Snorkel with supplied gear, join marine biologist talks, and use the glass-bottom boat, semi-submersible, and observatory. Optional scuba, helmet walks, and helicopter flights cost extra.

“Good trip. Husband got to dive and I got to have my feet in the ocean off 5he pontoon. Glass bottom boat and semi submersible were also included. We got a helicopter ride too (extra, but worth it).”

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6.Cairns: Great Barrier Reef Premium Diving Full Day Tour

★★★★★★★★★★4.7 · 792 reviews · 9 hours · from $127Best value

From Cairns Marlin Marina, spend five hours in the water at two outer reef sites with English-speaking guides, marine life talks, and Indigenous storytelling. Snorkel, add an introductory or certified scuba session, and enjoy tea plus a buffet lunch aboard Reef Magic’s comfortable boat.

“the trip was full of information, very well organised, and helpful, food was really nice and the people looking after you was really great”

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7.Silverswift Dive and Snorkel Great Barrier Reef Cruise

★★★★★★★★★★4.5 · 432 reviews · from $212

Spend about 10 hours aboard Silverswift, a 29-meter catamaran from Cairns, visiting three outer reef sites. Snorkel all day, try one or two introductory scuba sessions, or complete three certified descents. Guides such as Matilda, Paul, Dave, and Vanessa have helped beginners feel at ease.

“This boat was the nicest boat we've been on to go snorkeling/scuba diving. This was our first dive after our certification. The guide was very helpful. He took care of our tanks and hoses between dives. He gave us good tips. We had 6 people in our group. We saw some neat fish and a couple of turtles. On the second dive, we did some swim throughs. There was also hot fresh water showers when you got out of the ocean. We went to Flynn Reef. The lunch included fruit, pasta, curry, chicken legs amongst other things I don't remember. There was hot tea and coffee at every stop. It…”

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8.Cairns: Best Value All-inclusive Reef Trip With Scuba Dive

★★★★★★★★★★4.4 · 307 reviews · 1 day · from $184

Cruise from Cairns to two reef sites aboard a 24-meter catamaran. You get breakfast, BBQ lunch, marine biology talk, unlimited snorkelling, and one scuba session, either a 20-minute introduction or a certified outing. Crew members such as Dylan, Tia, Dan, and Fernando have helped make the underwater time feel calm and personal.

“Good informative and fun for a first time reef experience! Detailed information for beginners and experienced people, explained with Aussie humor. Catered well for all, attention to safety and tailored for everybody’s needs. First reef stop warmup and second stop really good, although a bit far from the boat. Can‘t say much about diving, but my daughter was happy with Theodore and special snorkel session. The mask and snorkel may want to have an upgrade, especially for newbies would help a lot to get a more pleasant experience, especially when the sea gets a bit rough. Summarizing, an informative and fun first reef experience, would definitely recommend.”

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9.Ocean Spirit Sail to Michaelmas Cay Snorkel or Dive, from Cairns

★★★★★★★★★★4.5 · 170 reviews · from $197

Spend a full day aboard Ocean Spirit sailing from Cairns to Michaelmas Cay. Snorkel from the white sand, join an optional guided session with marine biologists such as Jayden or Luiza, ride the semi-submersible, and enjoy seafood lunch plus morning and afternoon tea.

“Saw as many colorful fish and corals as we did on outer reef/rougher waters. 3 hours of bliss. Excellent food.”

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10.Great Barrier Reef with Cultural Guides-Dreamtime Dive & Snorkel

★★★★★★★★★★5.0 · 156 reviews · from $165

Join Dreamtime’s Indigenous Sea Rangers for a 9-hour trip from Cairns to Moore Reef and Milln or Flynn Reef. Hear the Creation Story, learn about traditional tools, snorkel with guides, and enjoy meals aboard a boat limited to 65 people. Scuba is not included.

“Absolutely amazing tour! Snorkeling was amazing, the whole crew was so kind and knowledgeable. Jed and Jacob were great cultural guides as week and it was so interesting learning about their cultures!”

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

★★★★★★★★★★4.7 · 86 reviews · 2 days · from $466

Sail from Cairns aboard Coral Sea Dreaming with up to 12 people, visiting reef sites around Flynn and Milln reefs. Snorkel as much as you like, add paid scuba sessions, and enjoy guided underwater time, fresh meals, a shared cabin, hot showers, and a possible night session for certified scuba guests.

“The entire programme was superb, managed meticulously... I never felt that I was on a boat... Our hosts Beee, Todd and Quentin were awesome in terms of knowledge, expertise and hospitality... They took care of each and every guest in every possible tailored way...The boat was small but very organised, every small detail was taken care of, food arrangements were the best possible in such a restricted environment... The dives were beautiful.. I did a total of 5 dives including a night dive, saw many sharks, turtles, rays, barracuda and other wildlife.. The beauty of the reef is beyond words... All the dive sites were well chosen and had variety.…”

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12.Cairns: Snorkelling and Diving Reef Day Trip

★★★★★★★★★★4.7 · 81 reviews · 8 hours · from $240

Join Divers Den from Cairns Marina for a full day at two Outer Great Barrier Reef sites on Norman, Saxon, or Hastings Reef. You get about four hours in the water, guided snorkelling, optional scuba for ages 12 and up, lunch, wetsuits, showers, and time to spot turtles, clownfish, stingrays, and reef sharks.

“Great day, fab guides and saw some sharks, colourful fish and a turtle. Very well done and professional. Food and amenities were great. Definitely worth doing.”

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13.Cairns: 4-Day PADI Open Water Course

★★★★★★★★★★4.8 · 44 reviews · 4 days · from $704

Train with Divers Den across two pool and classroom days, then head to the outer Great Barrier Reef for four open-water sessions. You receive equipment, PADI materials, instruction, refreshments, and selected Cairns transfers. English-speaking instructors such as Matt and Catalina may lead your course.

“Fantastic! Catalina, my instructor, was great. Knowlegeable, professional and fun. Safety is a priority and I have discovered a new passion.”

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14.Cairns: Pro Dive Great Barrier Reef 3 Day/2 Night Dive Trip

★★★★★★★★★★4.5 · 12 reviews · 3 days · from $739

Join Pro Dive Cairns for three days and two nights aboard an air-conditioned liveaboard, visiting 19 sites across four Outer Reef locations. Certified scuba divers can take up to 11 sessions, including two at night. Guides such as Daniel and Matthias support courses and dive planning.

“From hotel pick up to dives and drop off everything work perfectly. All we did for 3 days was sleep, dive, eat and repeat”

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15.Cairns: Pro Dive 5 Day Learn to Dive Great Barrier Reef

★★★★★★★★★★5.0 · 5 reviews · 5 days · from $888

Start with two days of pool and classroom training in Cairns, then join a three-day, two-night liveaboard on the Great Barrier Reef. Your same instructor guides you through four training sessions and five recreational outings, including a night session, with meals, equipment, and certification included.

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