Dive or snorkel in Aqaba

Granite-boulder islands in the Andaman Sea with some of Thailand’s clearest water and best coral.

Ras Mohammed’s coral walls and the Thistlegorm wreck, with visibility so clear the reef looks lit from within.

Dazzling turquoise South Pacific lagoon.

Uninhabited island with crystal water.

Vast, remote Pacific lagoon.

Fringing reef in Western Australia where whale sharks cruise close to shore.

Oceanic island off Borneo ranked among the best dive sites on Earth — turtles, barracuda tornadoes, reef sharks.

The planet's richest coral reefs.