Male damselfish try in vain to protect a brood of eggs from a saddle wrasse assault.
The UnderH2O crew ventures out into Waimea Bay to explore the science of big waves.
Scientists view coral under a laser scanning confocal microscope.
The mangrove forest is a place of amazement both above and below the waterline.
The Under H2O crew journeys far offshore for a midnight blackwater drift dive.
One of the most difficult habitats for any organism to inhabit is the intertidal.
The crew visits the wreckage of a WW II fighter plane off the shore of Oahu.
The team captures an incredible moment at Kilauea: when lava hits ocean water.
Diving off the Kona Coast of the Big Island of Hawaii among enormous manta rays.