Postcard from the Reef – Sea Turtle

Turtle breathe air. When an air-breathing marine creature needs to sleep there is an interesting choice. It is easy to understand pulling up on a beach to sleep securely, without the waves and currents to worry about. Sea turtles also use another tactic, one harder to fathom, sleeping in the back of a cave 30ft below the waterline…

Hawaiian Green Sea Turtle
Hawaiian Green Sea Turtle (Chelonia mydas) in a cave at Puako

Author: Andrew

An electrical engineer, amateur astronomer, and diver, living and working on the island of Hawaiʻi.

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