11 Port Douglas Snorkeling Tours Worth Booking

1.ABC Reef Safaris

★★★★★★★★★★5.0 · 1,443 reviews · from $458Our pick

From Port Douglas, ABC Reef Safaris takes you by custom catamaran to quieter outer Great Barrier Reef sites for about seven hours. Expect guided snorkeling, marine biology talks, quality gear, lunch, and a staff ratio as low as one guide to four guests. Guides such as Zoe, Will, Paula, Sam, Callum, and Jason are known for patient help in the water.

“An excellent trip to the outer reef with two marine biologists and just a handful of snorkelers. Would give 6 stars if I could.”

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2.Quicksilver Great Barrier Reef Snorkel Cruise from Port Douglas

★★★★★★★★★★4.5 · 782 reviews · from $233

Sail 90 minutes from Port Douglas to Agincourt Reef on a fast catamaran. Snorkel from a permanent pontoon, join a marine biologist, or stay dry in the semi-submarine and underwater observatory. Lunch, tea, suits, vests, and gear are included. Optional scuba, helmet walks, and helicopter flights cost extra.

“We had an incredible experience! There’s so much to do at the Quicksilver Pontoon. The helmet dive is a unique experience. We had fish swimming all around and thru the group. We felt safe with our guide Kevin, who briefed us thoroughly and was very friendly. The semi-sub provided a nice easy view of the reef, made better by our guide Tanya with her thoughtful and funny commentary. The free swim snorkelling area is expansive. We felt safe and secure with all the instructions provided. All of the crew are very knowledgeable and experienced. This was an amazing bucket list experience that we will treasure forever.”

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3.Outer Great Barrier Reef Snorkeling Cruise

★★★★★★★★★★4.9 · 711 reviews · 8 hours · from $210

Spend eight hours aboard Wavelength, cruising from Port Douglas to three Outer Great Barrier Reef sites. Marine biologists help you snorkel, explain coral and sea life, and lead guided swims. The day includes gear, wetsuit or lycra suit, meals, drinks, reef-safe sunscreen, and free photos.

“The crew were really energetic and knowledgeable. Taught us a lot about the incredible reef. We went to three reef areas to snorkel and all quite varied. Wish we had more time to repeat this amazing experience!”

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4.Full Day Low Isles Sailing & Snorkelling Cruise from Port Douglas

★★★★★★★★★★5.0 · 565 reviews · from $243

Sailaway takes you from Port Douglas to Low Isles aboard a 33-passenger catamaran. You get guided snorkeling with a marine biologist, the EV Discovery glass-bottom boat, a lighthouse walk, buffet lunch, and 4.5 hours around the island. Crew members such as Jake, Zara, Anna, and Cooper have been praised for clear instruction and careful water supervision.

“The crew were fantastic , very capable, gave clear instructions, so friendly and took the time to actually sit down with you and chat. Offered to bring drinks to us as they had better sea legs than us when the sea was was a big rough. The day was great value”

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5.Low Isles Glass Bottom Boat & Snorkeling Tour

★★★★★★★★★★4.7 · 469 reviews · 4 hours · from $135

Join Calypso Snorkel & Dive for a four-hour trip from Port Douglas to Low Isles. Snorkel in a calm lagoon, ride the glass bottom boat, walk to the lighthouse, and watch for turtles, reef sharks, fish, and birds. Guides such as Katie, Dani, Cedric, and Ruth have helped beginners feel safe and ready for the water.

“My children aged 12 and 8 absolutely loved this experience. Seeing the marine life was amazing. My youngest was so excited to see turtles in the wild. Make sure you take suncream which is safe for the barrier reef. Ie. moogoo brand which is naturally Derived Clear Zinc Cream. This way it preserves the Barrier Reef for other future generations to enjoy 🥳🥳🥳”

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6.Outer Barrier Reef Snorkel and Dive Options

★★★★★★★★★★4.9 · 438 reviews · 7h 30m · from $174

Cruise from Port Douglas to Opal or Agincourt Reefs for three reef stops, guided snorkeling, optional scuba sessions, meals, and reef talks. You may meet marine biologist Freya or instructors such as Ruth, Reenie, and Delphine. Expect a long day at sea, plenty of deck space, and changing conditions.

“We saw amazing coral and reefs. Best place we ever snorkeled. The guide and boat were wonderful. Dave had a great sense of humor and we really liked him. You won’t regret it!”

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7.Outer Reef Mackay Cay Sail & Snorkel Adventure from Port Douglas

★★★★★★★★★★5.0 · 436 reviews · from $243

Sailaway takes you from Port Douglas to Mackay Cay off Cape Tribulation for a full day on the Great Barrier Reef. You’ll snorkel with a marine biologist, ride a glass-bottom boat, visit a coral cay, and enjoy buffet lunch plus morning and afternoon refreshments. Marine biologist Barry may help explain the reef and point out turtles, fish, clams, and coral.

“Fantastic trip! Despite a mostly wet day had a great time - equipment and crew were top notch. Loved the smaller group (only 24 passengers) which made it so much more personal and enjoyable. The sea turtles and the stop on the sand cay were highlights!”

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8.Silversonic Great Barrier Reef Dive & Snorkel

★★★★★★★★★★4.8 · 353 reviews · 8 hours · from $189

Spend a full day aboard Quicksilver’s 29-meter Silversonic catamaran, cruising from Port Douglas to three Agincourt Ribbon Reef sites. You get more than five hours in the water, a guided snorkel tour, meals, safety support, and gear. Scuba options cost extra, while licensed Minke whale encounters may occur from July through September.

“Great experience, crew were very professional and fun. Trip out to reef was rough but they prepared all passengers for the heavy seas. Reef experience was really enjoyable”

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9.Low Isles Reef Snorkeling Tour

★★★★★★★★★★4.6 · 46 reviews · 2h 15m · from $134Best value

From Port Douglas, you’ll take a 15-minute speedboat ride with up to 13 other passengers to Low Isles Reef. Snorkel for 1.5 hours at a sheltered mooring, with gear, suits, lifeguard support, and a free glass-bottom boat option included. Guides such as Matt, Jason, Steve, Max, and Georgie have helped make this a friendly, useful introduction to the reef.

“Excellent. Matt was amazing. He helped my wife who nervous but him around she had the best time.”

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10.Half-Day Low Island and Lagoon Snorkeling Tour

★★★★★★★★★★4.8 · 24 reviews · 3h 30m · from $176

From Port Douglas, you’ll ride a fast speedboat to Low Island, then cross by glass-bottom boat for about two hours of snorkeling, beach time, or a guided island walk. The group is limited to 14 people. Gear, reef tax, water, and an optional guided walk are included, but you’ll need to bring snacks, sunscreen, and a towel.

“We hadden een geweldige middag. We hebben veel schildpadden gezien en daar kwamen wij voor. Het koraal is hier wat minder mooi, daarvoor moet je echt naar de Outer reef.”

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11.Poseidon Outer Barrier Reef Dive and Snorkel

★★★★★★★★★★4.8 · 19 reviews · 8 hours · from $213

Poseidon takes you from Port Douglas to three Agincourt Ribbon Reef sites for more than five hours in the water. Snorkel with expert guides, hear marine biologist Fern explain the reef, and enjoy lunch, equipment, and small-group service aboard a 24-metre catamaran. Scuba is available at an extra cost.

“Fantastic crew, amazing sites. On-board Marine biologist, Fern, provided some interesting presentations about the marine life, and a guided tour around the reef, which I thoroughly enjoyed! The vessel out to the reef was very comfortable, and bonus great weather and sea conditions!”

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