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Free-diving to collect data on corals

By Pacific Coastal and Marine Science Center
Underwater, a man wearing a snorkel, fins, and mask swims down to a coral reef with an instrument tied to a tether.
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Detailed Description

Research geologist Curt Storlazzi free-dives in order to set an instrument on the reef off Kauaʻi, Hawaiʻi in March of 2015.

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Public Domain.

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