Submersible (Episode 2)

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Diving to the seabed on an especially designed research submersible in search of ancient sponge reefs.

The fascinating sea around the volcanic Turtle Mountain Island off the coast of Taiwan.

Diving to the seabed on an especially designed research submersible in search of ancient sponge reefs.

The reconstruction of coral reefs around the shore of Hainan island in Southern China.

A diving expedition in the Bikini Atoll, the place where devastating nuclear bomb test took place in the 1950s.