9 reef destinations in two oceans · 223 boat trips compared
These are nine reef destinations that you can reach on a day trip, from Australia to Hawaii and the Caribbean. For each reef we line up every boat that goes there, so you can see prices and reviews side by side.
This small reef is shaped like a heart. You can only see it from above, on a scenic flight from Airlie Beach in Australia.
One reef, every boat
Here is an example from Hawaii. These are the five boats that take the most guests to the manta rays off Kona at night. You see at a glance which trip is cheapest and which one guests liked most.
Kona, Big Island of Hawaii
Kona, Big Island of Hawaii
Kona, Big Island of Hawaii
Kona, Big Island of Hawaii
Kona, Big Island of Hawaii
All reefs at a glance
The table shows where each reef is, when the sea is at its best, how warm the water gets, how many trips we compared and the lowest price per adult. Updated November 14, 2026.
| Reef | Best months | Sea temperature | Trips | From | Booked most often |
|---|---|---|---|---|---|
| Great Barrier ReefCairns, Australia | Jun to Oct | 74–85 °F | 41 | $75 | Great Barrier Reef Snorkeling and Diving Cruise from Cairns |
| Whitsunday IslandsAirlie Beach, Australia | Aug to Oct | 72–84 °F | 22 | $66 | Ocean Rafting: Whitehaven Beach, Snorkelling & Hill Inlet Lookout |
| Molokini CraterMaui, Hawaii | Dec to Apr | 76–81 °F | 23 | $99 | Maui Snorkeling Adventure to Molokini and Turtle Town |
| Manta night snorkelKona, Hawaii | Oct to Apr | 76–81 °F | 23 | $80 | Big Island Manta Ray Night Snorkel |
| Key West reefFlorida, USA | Mar to May | 75–87 °F | 19 | $45 | Half-Day Trip from Key West with Kayaking, Snorkeling & Sunset |
| Key Largo reefsFlorida, USA | Mar to May | 75–86 °F | 20 | $67 | Key Largo Two Reef Snorkel Tour - All Snorkel Equipment Included! |
| Cozumel reefsMexico | Dec to May | 80–86 °F | 38 | $18 | ATV 4×4+Cenote+Snorkeling+Beach Club+ Lunch+Sabores de Cozumel |
| Stingray CityGrand Cayman | Dec to Apr | 80–86 °F | 22 | $48 | Stingray City Experience Plus Two Snorkeling Stops on Grand Cayman |
| Grace Bay reefTurks and Caicos | Dec to May | 78–86 °F | 15 | $99 | 4hr Group Half Day Snorkel Excursion in Grace Bay, Providenciales |
The reefs
Every reef on this page gives you one experience that you cannot have anywhere else. Pick the one that fits your trip, and we show you the boats that go there.
Australia · Whitsunday Islands
The Whitsundays are 74 islands at the edge of the Great Barrier Reef. Most boats combine a snorkel stop on the reef with Whitehaven Beach, where the sand is so fine that it squeaks under your feet.
Australia · Cairns and Port Douglas
The Great Barrier Reef is about 2,300 kilometers long, which is longer than the whole west coast of the United States. From Cairns and Port Douglas, fast boats take you to the outer reef, where the water is clearest. From November to May the boats lend you a thin full-body suit, so you can swim without worrying about jellyfish.
Hawaii · Kona, Big Island
After sunset, boats from Kona shine bright lights into the water. The light attracts tiny plankton, and the plankton attracts manta rays as wide as a small car. You hold on to a floating light board and watch them turn loops just below you.
Most trips to Molokini start early in the morning, when the sea is calmest.
Hawaii · Maui
Molokini is the rim of an old volcano that sticks out of the sea off the south coast of Maui. Its half-moon shape protects the water inside from waves, so you can often see down to the bottom. Boats leave from Maʻalaea Harbor and Kihei.
USA · Florida Keys
The Florida Keys have the only living coral barrier reef in the continental United States. Off Key Largo, a bronze statue called Christ of the Abyss stands on the sea floor, and snorkelers can see it from the surface on a calm day. From Key West, many trips add kayaking or a sunset sail. If you stay near Miami, Key Largo snorkeling is closer.
The Caribbean
In the Caribbean the reefs are close to the beach, and many trips take only half a day. This is why they also work well on a cruise stop.
The current carries you slowly along the reefs of Palancar and Columbia. You only need to float. 38 trips from $18.
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On a sandbar in the middle of the bay the water is only waist-deep, and dozens of stingrays swim around your legs. 22 trips from $48.
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A long barrier reef runs along the north coast of Providenciales. The boats leave right from the beach at Grace Bay. 15 trips from $99.
Compare the boats →How we compare
We collect every trip that goes to the reef, not only the most famous one. A trip only counts if the reef and the harbor are named in it.
Prices and reviews come from our booking partner. Next to every number you see the date when we last checked it.
When you book through Reef Guide, you pay exactly what you would pay on the partner site.
Questions
Reefs with shallow, calm water are best for beginners. Stingray City on Grand Cayman is only waist-deep, the reefs of Key Largo are often 1.5 to 4.5 meters (5 to 15 feet) deep, and inside Molokini Crater the water is protected from waves.
It depends on the reef. In tropical Australia, June to October is outside the jellyfish season. In Florida and the Caribbean, December to May is outside the hurricane season. Off Kona in Hawaii you can see manta rays all year.
Many travelers name the Great Barrier Reef in Australia first. On this page you also find seven more reefs that you can reach on a day trip, for example Molokini on Maui and the manta rays off Kona in Hawaii.
You should be able to swim, but you do not need to be fast. Most boats lend you a life vest or a floating noodle, and a guide stays in the water with the group.
Yes. On many reefs you can watch the corals from a glass-bottom boat or a semi-submarine, and in the Whitsundays you can fly over Heart Reef in a small plane.
No. When you book through Reef Guide, you pay the same price as on the partner site. We receive a small commission from the partner.