Superlative · reefs & marine life
The Best Places to Snorkel and Dive in the World
14 places · every one real, mapped, and worth the trip
The richest underwater worlds gather almost impossible abundance in a single dive or snorkel: walls of coral, clouds of fish, turtles, sharks, and giants that dwarf a swimmer. This is our editors' pick of the best places on Earth to put your face in the water.
It isn't a strict ranking. Each is a real, mapped, protected place with an honest note on how to reach it and the season that shows it best — some need a liveaboard, some are a short swim from a beach.
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Great Barrier Reef The largest reef
Queensland coast, Australia
The largest living structure on Earth off Queensland — thousands of reefs and islands teeming with coral, turtles, and fish.
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Similan Islands Best in Thailand
Mu Ko Similan National Park, Phang Nga Province, Andaman Sea, Thailand
Granite swim-throughs and coral gardens in the Andaman Sea, open only from roughly mid-October to mid-May.
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Belize Barrier Reef Atolls and wall diving
Caribbean coast of Belize
Shallow, forgiving snorkelling at Hol Chan close to shore, and serious wall dives out on Lighthouse and Glover's atolls.
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Raja Ampat Peak biodiversity
West Papua, Indonesia
The most biodiverse reefs in the world in remote eastern Indonesia, where karst islands drop into coral gardens.
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Tubbataha Reefs Natural Park
Sulu Sea, off Palawan, Philippines
A remote UNESCO-listed atoll reserve in the Philippine Sulu Sea, reached only by liveaboard, with sharks and pristine walls.
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Sipadan Island Turtle island
Celebes Sea, off Sabah, Malaysian Borneo
A coral pinnacle off Borneo rising from the deep, famous for schooling barracuda, jacks, and green turtles.
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Ningaloo Reef Swim with whale sharks
Coral Coast, Western Australia
A fringing reef off Western Australia where you can snorkel straight from the beach and swim with whale sharks in season.
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The Great Blue Hole
Lighthouse Reef, off Belize
Belize's perfect deep-blue sinkhole ringed by reef, a bucket-list dive into a drowned cave system.
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Ras Muhammad
Southern Sinai, Egypt
Egypt's Red Sea headland where sheer coral walls and warm, clear water draw divers year-round.
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Komodo National Park
Lesser Sunda Islands, East Nusa Tenggara, Indonesia
Indonesia's dragon islands, ringed by nutrient-rich reefs, mantas, and dramatic drift dives.
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Apo Reef Natural Park
Occidental Mindoro, Philippines
The Philippines' vast atoll-like reef, the country's largest, a protected haven of sharks and coral.
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Moalboal Sardine Run The sardine run
Moalboal, Cebu, Central Visayas, Philippines
A shoreline in Cebu where a million-strong sardine baitball swirls just off the beach, snorkellable year-round.
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Donsol Whale Shark Sanctuary
Donsol, Sorsogon, Bicol Region
A Philippine bay where whale sharks gather to feed, seen respectfully on regulated interaction tours.
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Cocos Island
Pacific Ocean, 550 km off Costa Rica
A remote Pacific island off Costa Rica, a liveaboard-only reserve famed for schooling hammerhead sharks.
Marine conditions are seasonal and often regulated: whale sharks, mantas, and sardine runs peak at set times, and the remotest reefs are liveaboard-only. Always follow local marine-park rules and reef-safe practice. Each guide notes the best time and how to reach it.
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