PBS Anywhere

Providing Support for PBS.org

Under H2O

Blackwater Drift Dive

5:20

The vast, unexplored ocean is filled with wonderful and mysterious creatures. This week, we journey far offshore for a midnight drift dive with over 1,000 feet of water between us and the seafloor. The animals here are bizarre and beautiful, and little is known about their biology.

Episodes of Under H2O9

Under H2O

Damselfish in Distress

Male damselfish try in vain to protect a brood of eggs from a saddle wrasse assault.

5:38

Under H2O

The Power of Waves

The UnderH2O crew ventures out into Waimea Bay to explore the science of big waves.

7:27

Under H2O

Into the Mangrove Forest

The mangrove forest is a place of amazement both above and below the waterline.

5:45

See all Episodes