First underwater observation chamber
Last updated: September 20, 2017 at 1:46 am
The Calypso was the first ship equipped with an underwater observation chamber with 6 portholes where a person could view sea life from a depth of 3 m (10 ft) in 1950. The chamber was replaced by a larger but lighter design including 8 portholes in 1966.
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Jeffrey Gallant is the Editor-in-Chief and Records Keeper of the Diving Almanac. He is also a contributing editor of DIVER Magazine, and the scientific director of the Greenland Shark and Elasmobranch Education and Research Group (GEERG). Jeffrey started diving in 1982.