Deepest cave dive [USA]
Last updated: August 21, 2017 at 13:51 pm
157 m (515 ft) – Chuck Noe (USA), Goodenough Springs cave system (Del Rio, Texas), July 20, 2008. The dive required the use of sidemount configuration (open circuit) in order to pass an extremely tight high-flow restriction at a depth of 58 m (190 ft).
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First saturation dive under polar ice
By Jeffrey Gallant | Apr 7, 2017
Jim English (Memorial University, Canada) and Bob Wicklund (Manager Hydrolab, USA) — Arctic IV Expedition led by Dr. Joe MacInnis in Resolute Bay [...]
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First mixed gas dives under polar ice
By Jeffrey Gallant | Apr 7, 2017
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![Longest stay in an underwater habitat [Europe]](http://divingalmanac.com/wp-content/uploads/2017/01/1994_romania_habitat_2.jpg)
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By Jeffrey Gallant | Apr 23, 2017
36 days | Lacustris Programme (Romania) — Aquanauts Liviu Miron & Constantin Mihai set the European record of 36 days [...]
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Coldest salt water
By Jeffrey Gallant | May 23, 2017
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Coldest seawater
By Jeffrey Gallant | May 23, 2017
Seawater with an average salinity of 35 ppt (parts per thousand) freezes at -1.94°C (28.5°F). The coldest seawater ever recorded at −2.6 °C (27.3 °F) was found in a stream under [...]
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By Jeffrey Gallant | Apr 23, 2017
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First underwater live monitor broadcast
By Jeffrey Gallant | Apr 9, 2017
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By Jeffrey Gallant | Apr 11, 2017
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![Largest diveable liner [Recreational depth]](http://divingalmanac.com/wp-content/uploads/2017/04/Largest_Ocean_Liner_R2.jpg)
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By Jeffrey Gallant | Apr 23, 2017
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First diver to film frilled shark
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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.