Explore the world underwater

Grotta di Nereo (Cueva de Nereo)

Italy

Hasta 33 m · Advanced Open Water; the narrow tunnels require a cave qualification

Red coral (Corallium rubrum) · spiny lobsters · European lobsters

Tremiti Islands

Italy

Hasta 40 m · Advanced Open Water

25 m21 °C

Groupers · red corals · lobsters

Kastellorizo (Cueva Azul)

Greece

Hasta 20 m · Open Water

25 m24 °C

Reef fish · lobsters

Halkidiki

Greece

Hasta 30 m · Open Water

20 m22 °C

Groupers · moray eels · seahorses

Ponza Island

Italy

Hasta 35 m · Advanced Open Water

25 m20 °C

Groupers · lobsters · volcanic formations

Symi

Greece

Hasta 30 m · Open Water

20 m23 °C

Groupers · lobsters · sponges (a historic sponge-diving tradition)

Milos

Greece

Hasta 35 m · Open Water

25 m23 °C

Seahorses · lobsters · volcanic formations

Corfú (Paleokastritsa)

Greece

Hasta 30 m · Open Water

20 m23 °C

Groupers · octopus · lobsters

Kas

Türkiye

Hasta 40 m · Advanced Open Water

25 m22 °C

Groupers · turtles · a submerged aircraft wreck

Fethiye

Türkiye

Hasta 35 m · Open Water

20 m23 °C

Groupers · octopus · the Fethiye aircraft wreck

Blue Cave of Biševo

Croatia

Hasta 10 m · Open Water / Snorkel

20 m22 °C

Reef fish

Lastovo Island

Croatia

Hasta 35 m · Open Water

25 m21 °C

Groupers · lobsters · corals

Kornati Islands

Croatia

Hasta 35 m · Open Water

25 m21 °C

Posidonia oceanica meadows · bottlenose dolphin · loggerhead turtle

Malta (Blue Hole Gozo / Um El Faroud)

Malta

Hasta 40 m · Advanced Open Water

35 m20 °C

Groupers · moray eels · octopus

Comino (Laguna Azul y Cuevas)

Malta

Hasta 20 m · Open Water

30 m20 °C

Reef fish · the turquoise light effect

Gozo (Cathedral Cave/Reqqa Point)

Malta

Hasta 40 m · Advanced Open Water

30 m20 °C

Groupers · moray eels · encrusting corals

Cape Greco

Cyprus

Hasta 30 m · Open Water

25 m22 °C

Reef fish · moray eels · the nearby Zenobia wreck

Paphos (pecios)

Cyprus

Hasta 35 m · Advanced Open Water

25 m21 °C

Reef fish · moray eels · the Achilleas tug wreck

Ksamil

Albania

Hasta 30 m · Open Water

20 m23 °C

Groupers · octopus · corals

Similan Islands

Thailand

Hasta 30 m · Advanced Open Water

20 m28 °C

Manta rays at the cleaning stations of Koh Bon and Koh Tachai · turtles · leopard sharks

Sohoton Cove

Philippines

Hasta 15 m · Open Water

15 m27 °C

Reef fish · karst formations

Camotes Islands

Philippines

Hasta 25 m · Open Water

20 m28 °C

Turtles · reef fish · freshwater caves nearby

Isla de Navidad (Christmas Island)

Australia

Hasta 40 m · Open Water on the shallow reefs; advanced on Perpendicular Wall

Whale sharks · manta rays · spinner dolphins all year round

Miyako Island

Japan

Hasta 35 m · Advanced Open Water

30 m25 °C

Reef fish · underwater karst formations

Koh Ha (Krabi)

Thailand

Hasta 30 m · Advanced Open Water

20 m28 °C

Leopard sharks · barracuda · light caves

Mergui Archipelago (Black Rock)

Myanmar

Hasta 35 m · Advanced Open Water

20 m28 °C

Nurse sharks · giant lobsters · underwater caves

St John's Reef

Egypt

Hasta 40 m · Advanced Open Water

30 m27 °C

Hammerheads · grey reef shark · oceanic whitetip

Blue Hole Dahab

Egypt

Hasta 130 m · Advanced / highly experienced

25 m26 °C

Clownfish · Napoleon wrasse · turtles

Moucha Island

Djibouti

Hasta 30 m · Open Water

20 m27 °C

Turtles · reef sharks · hard corals

Andros Barrier Reef

Bahamas

Hasta 300 m · Advanced Open Water

30 m27 °C

The third largest barrier reef in the world · reef sharks · inland blue holes

Dean's Blue Hole

Bahamas

Hasta 202 m · Advanced / technical freediving

30 m26 °C

Limited wildlife; a world mecca of freediving

Yasawa Islands

Fiji

Hasta 25 m · Open Water

20 m26 °C

Reef sharks · seasonal manta rays · soft corals

French Reef (Key Largo)

United States

Hasta 20 m · Open Water

20 m26 °C

Moray eels · large snapper · groupers

Guam (Blue Hole)

Guam

Hasta 40 m · Advanced Open Water

25 m28 °C

Reef fish · occasional sharks

Saipan (Grotto)

Northern Mariana Islands

Hasta 40 m · Advanced Open Water

30 m28 °C

Reef sharks · turtles · karst formations

Punta Francés

Cuba

Hasta 40 m · Advanced Open Water

30 m27 °C

Reef sharks · groupers · giant sponges

Sosúa

Dominican Republic

Hasta 35 m · Open Water

25 m27 °C

Moray eels · lobsters · reef fish

Blue Hole (Turneffe)

Belize

Hasta 40 m · Advanced

30 m27 °C

Reef sharks · groupers

Great Blue Hole

Belize

Hasta 124 m · Advanced

30 m27 °C

the appeal is geological. Reef and nurse sharks at the entrance

Devil's Grotto (Grand Cayman)

Cayman Islands

Hasta 15 m · Open Water

25 m27 °C

Silversides · groupers · moray eels

Trinity Caves (Grand Cayman)

Cayman Islands

Hasta 30 m · Advanced Open Water

30 m27 °C

Giant barrel sponges · groupers · lobsters

Osezaki

Japan

Hasta 30 m · Open Water

10 m20 °C

Seahorses · octopus · temperate-water corals

Crystal River (manatíes)

United States

Hasta 10 m · Open Water / Snorkel

20 m22 °C

Florida manatees

Ginnie Springs

United States

Hasta 30 m · Open Water / Cavern

30 m22 °C

Freshwater fish · river turtles

Puerto Vallarta (Los Arcos)

Mexico

Hasta 25 m · Open Water

15 m26 °C

Rays · moray eels · tropical Pacific fish

Devil's Den

United States

Hasta 10 m · Open Water

30 m22 °C

Freshwater fish

Poor Knights Islands

New Zealand

Hasta 25 m · Advanced Open Water

20 m19 °C

Subtropical fish · lobsters · unique acoustics

Cathedrals (Lanai)

United States

Hasta 25 m · Advanced Open Water

30 m25 °C

Rare black coral on the roof of the main chamber · tube corals · sponges

Cathedral Cove

New Zealand

Hasta 25 m · Open Water

15 m19 °C

Eagle rays · snapper · lobsters

Fish Rock Cave (South West Rocks)

Australia

Hasta 24 m · Advanced Open Water; operators recommend at least 20 dives for the cave

Grey nurse sharks in aggregations of up to thirty · a resident black cod · large wobbegongs

Cenote Casa Cenote

Mexico

Hasta 10 m · Open Water

25 m25 °C

Occasional crocodiles · freshwater fish

Pillars of Hercules

Antigua and Barbuda

Hasta 20 m · Open Water

20 m27 °C

Reef fish · lobsters

Sistema Ox Bel Ha

Mexico

Hasta 25 m · Technical (Cave Diver)

30 m25 °C

Stygobitic fauna adapted to caves; pumas · jaguars and deer have been recorded at the surface cenotes

Sistema Sac Actun

Mexico

Hasta 20 m · Technical (Cave Diver)

30 m25 °C

Blind cave fish · bats · troglobitic fauna

Cenote Calavera

Mexico

Hasta 15 m · Open Water (with a guide)

30 m25 °C

Freshwater fish · bats

Cenote Chac Mool

Mexico

Hasta 15 m · Open Water (with a guide)

30 m25 °C

Freshwater fish

Cenote Dos Ojos

Mexico

Hasta 10 m · Open Water (with a guide)

90 m24 °C

Freshwater fish · bats

Cenote Angelita

Mexico

Hasta 60 m · Advanced / technical

40 m24 °C

Limited wildlife

Gran Cenote

Mexico

Hasta 10 m · Open Water (with a guide)

50 m25 °C

Freshwater fish · river turtles

Kilsby Sinkhole

Australia

Hasta 40 m · Open Water in the areas with no overhead; Cave Diver for the enclosed environments

the appeal is the clarity and the play of light

Cueva Molnár János

Hungary

Hasta 40 m · Technical (Cave Diver); only with a guide from the local operator

a thermal system with no notable fauna

Cueva de Orda (Ordinskaya)

Russia

Hasta 40 m · Technical (Cave Diver, cold water and drysuit)

a gypsum karst system with no notable fauna

Hranická Propast

Czechia

Hasta 404 m · Advanced technical (heavily restricted access)

15 m9 °C

Limited wildlife