This underwater sculpture park is the basis for a manmade coral reef.

The inky volcanic sand leads to reefs teeming with aquatic life waiting to be discovered by snorkelers and divers.

It took 28 years to build this massive statue of the Hindu god Vishnu riding a mythical bird.

Isolated atop this Balinese sea crag is a lovely Hindu temple that is said to be guarded by sea snakes.

This curious fresh and salt water lake holds a secret that draws in deep divers from around the world.

This unusual island has a winding sand bridge that only appears at low tide.

Five miles of underground river link lake to ocean.