Silfra Fissure
Iceland – Þingvellir, Iceland
Glacial meltwater between two tectonic plates, with visibility that can pass 100 m.
- Open Water
- Fissure
Iceland – Þingvellir, Iceland
Glacial meltwater between two tectonic plates, with visibility that can pass 100 m.
Bonaire
Shore-dive coral garden with large shallow coral formations and Reef Renewal Foundation coral trees planted to help restore the reef.

Bonaire
Buddy Dive Resort's house reef, perfect for beginners, where black crinoids perch on coral heads and a resident tarpon greets most night divers.
Dahab, Egypt
Walk-in shore dive where holes and cracks hide morays, nudibranchs and scorpionfish, with a school of yellowtail barracuda at 7 m.
Moalboal, Philippines
A sardine ball that spreads from 2 to about 15 m off Panagsama Beach, hunted by mackerels and tuna, with a thresher shark if you are lucky.

Cozumel, Mexico
Three long coral ridges in mild current off Marina Caleta, popular for night dives; look out for toadfish.
Riviera Maya & Cenotes, Mexico
An open-overhead dive along a winding mangrove-lined river for about 228 m, with platys, guppies and mollies among the roots.
Grenada
Opened in May 2006 as the world's first underwater sculpture park, with over sixty-five concrete sculptures off Grenada's west coast.
Palau
A vertical wall dropping to 900 feet, where hawksbill turtles feed and rest on the reef top.
Levels with a dashed outline are estimates we are still checking against published sources.