Snorkel Mohéli Marine Park

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

Protected lagoon reefs and islets.

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

Sail to uninhabited reef-ringed islets.

The planet's richest coral reefs.

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

Jordan’s slice of the Red Sea: coral gardens, a sunken tank and the Cedar Pride wreck in warm, calm water.

Snorkel over warm volcanic bubbles.