First diver to reach the bottom of Dean’s Blue Hole
Last updated: August 29, 2017 at 19:23 pm
Jim King (USA) – 1992. King took 11 min to descend to the bottom (202 m / 663 ft) of Dean’s Blue Hole on TRIMIX. After spending 3 min on the bottom, his ascent back to the surface required nearly five hours of decompression.
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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.