Best Diving & Snorkeling Destinations
The world's best diving, from the Great Barrier Reef and the Red Sea to Raja Ampat and the Galapagos.
To dive is to enter a parallel world, one of coral cathedrals, drifting shoals and encounters with creatures found nowhere on land. The oceans hold an astonishing range of underwater destinations, from the technicolour reefs of the Coral Triangle to the shark-thronged atolls of the Pacific and the eerie, life-rich cold waters of the poles. Diving travel opens up a hidden two-thirds of the planet, and each destination offers a completely different cast of marine life.
The experiences on offer are hugely varied. Some dives are gentle drifts over shallow gardens of coral perfect for beginners; others are adrenaline-charged encounters with pelagic sharks, mantas and schooling fish in strong current. Many of the world’s greatest sites are reached only by liveaboard boat, spending days at sea to access remote reefs, while others lie a short swim from the beach.
Marine life follows the seasons and the currents, so timing a dive trip is about matching the destination to the wildlife you hope to see, from whale sharks and hammerheads to manta aggregations and coral spawnings. The destinations below span every ocean and every level of experience, chosen for the sheer richness and drama of what lies beneath the surface.
The World's Top Dive Destinations#
Raja Ampat, Indonesia At the heart of the Coral Triangle, this remote archipelago off West Papua holds the richest marine biodiversity on earth, with reefs blanketed in soft coral and swirling with fish. Strong currents feed the reefs and draw manta rays, sharks and vast schools, making for exhilarating drift diving. Most sites are reached by liveaboard, and the calmer October-to-April season is prime.
The Great Barrier Reef, Australia The world’s largest reef system stretches over 2,000 kilometres off Queensland, offering everything from shallow coral gardens to the dramatic drop-offs of the outer Ribbon Reefs. Divers can encounter turtles, reef sharks and, in a narrow winter window, the giant dwarf minke whales. June to November brings the clearest water, and liveaboards reach the pristine outer reefs.
The Red Sea, Egypt Warm, clear and startlingly colourful, the Red Sea offers steep coral walls, historic wrecks like the Thistlegorm, and reliable big-fish action around the offshore reefs of the Brothers and Daedalus. Its accessibility and long season make it a favourite for European divers of every level. Diving is good year-round, with the shark-rich offshore reefs best in the warmer summer months.
Sipadan, Malaysia Rising from the deep off Borneo, this single oceanic island is ringed by walls that plunge into blue and teem with turtles, barracuda tornadoes and patrolling sharks. Daily permits are strictly limited to protect the reef, so booking well ahead is essential. The calm, clear conditions from April to December make it a year-round bucket-list dive.
The Galapagos, Ecuador Diving the Galapagos is a big-animal spectacle, with cold, current-swept sites off Wolf and Darwin islands drawing hammerhead schools, whale sharks and marine iguanas grazing underwater. It is advanced diving in surge and current, reached only by liveaboard, and best suited to experienced divers. June to November brings the whale sharks, though the water is colder then.
Palau, Micronesia This Pacific nation offers world-class drift diving, from the shark-filled Blue Corner to the surreal stingless jellyfish of Jellyfish Lake and haunting World War II wrecks. Strong currents make hook-in diving a signature experience, rewarding confident divers with front-row big-fish action. The drier months from November to April offer the best visibility.
Cocos Island, Costa Rica A remote speck in the Pacific, Cocos is legendary for enormous schools of scalloped hammerheads, plus whale sharks, dolphins and mantas in nutrient-rich, current-driven water. Reaching it means a 36-hour boat crossing and a liveaboard trip, and the diving is strictly for the experienced. June to December is best for hammerhead aggregations.
The Maldives These Indian Ocean atolls offer diving for everyone, from easy reef dives to thrilling channel drifts alive with grey reef sharks, eagle rays and, seasonally, manta and whale-shark aggregations. Liveaboards and resort-based diving both abound, and the warm water is inviting year-round. The southwest-monsoon months bring plankton and the famous manta feeding frenzies to Hanifaru Bay.
Blue Hole, Belize This near-perfect circle of deep blue in the Caribbean, formed by a collapsed limestone cave, is one of diving’s iconic images, its walls hung with vast stalactites. The signature deep dive is more about the surreal geology and the reef sharks patrolling the rim than teeming life. Calm conditions from April to June are ideal for the crossing.
Tubbataha Reefs, Philippines This remote UNESCO-listed atoll in the Sulu Sea bursts with pristine coral, sharks, turtles and huge schooling fish across sheer walls. Accessible only by liveaboard during a brief season, it rewards the journey with some of Asia’s most untouched reefs. The narrow March-to-June window, when the sea is calm, is the only time to dive it.
Silfra, Iceland For something utterly different, Silfra is a crack between the North American and Eurasian tectonic plates filled with meltwater of astonishing, gin-clear visibility. Divers and snorkellers drift through the fissure in a drysuit, literally floating between two continents. The near-freezing water makes it accessible year-round, though a drysuit and certification are essential.
Bonaire, Caribbean A pioneer of shore-based marine conservation, Bonaire is the ultimate self-guided diving destination, its fringing reef accessible directly from the beach along the entire leeward coast. Calm water, easy access and healthy coral make it ideal for independent and repetitive diving. The trade-wind-sheltered west coast dives well all year.
Socorro, Mexico Part of the remote Revillagigedo Islands far off Mexico’s Pacific coast, Socorro is famed for close, curious encounters with giant oceanic mantas, plus hammerheads, dolphins and seasonal humpback whales. It is liveaboard-only big-animal diving in open ocean, best for confident divers. November to May is the season, with humpbacks arriving in the new year.
South Ari Atoll and Sardine Run, worldwide seasonal spectacles Beyond fixed reefs, the ocean’s great migrations offer unforgettable diving, from whale-shark feeding at South Ari to South Africa’s Sardine Run, when billions of fish trigger a predator feeding frenzy off the Wild Coast. These are timed, wildlife-led trips rather than resort diving, demanding flexibility and patience. The Sardine Run peaks from May to July as the shoals move north along the coast.