First dive under sea ice [Arctic | Women]

Last updated: August 29, 2017 at 2:00 am

1994 – Christine Dennison (USA), Resolute Bay (Canada).

SOURCE:
Verified by Diving Almanac & Book of Records official

Comments are moderated: (1) Stay on topic (2) Be respectful (3) Refrain from vulgarity and abusive language (4) Do not publish materials that violate copyright. OFFENDING COMMENTS WILL BE DELETED.
First online scuba magazine

First online scuba magazine

By   Jeffrey Gallant  /  Apr 11, 2017
1997 — Aqualog Magazine was the first dive magazine published exclusively online. Based in Montréal, Québec, and offered in English and in French, the [...]
Read More
First shark observation cage [Under ice]

First shark observation cage [Under ice]

By   Jeffrey Gallant  /  Apr 7, 2017
2002 — The cage was deployed in the frozen Saguenay Fjord by Jeffrey Gallant and John Batt (GEERG) during Operation Skalugsuak II near the village [...]
Read More
First diver to tag a Greenland shark underwater

First diver to tag a Greenland shark underwater

By   Jeffrey Gallant  /  Apr 7, 2017
2004 — Jean-Yves “Tag” Forest tagged a free-swimming Greenland shark off Baie-Comeau, Québec, during [...]
Read More
First shark observation cage dives [Canada]

First shark observation cage dives [Canada]

By   Jeffrey Gallant  /  Apr 7, 2017
2000 — Jeffrey Gallant and Chris Harvey-Clark (GEERG), observed several blue sharks off the coast of Halifax, Nova Scotia. The cage was used as a precaution [...]
Read More
Slowest fish

Slowest fish

By   Jeffrey Gallant  /  May 22, 2017
Dwarf seahorse (Hippocampus zosterae) — 152 cm per hour (0.001 km/h) or 60 in. per hour (0.0009 mph). Size: 4.2 cm (1.7 in). The dwarf seahorse swims in an upright position using its [...]
Read More
Coldest seawater

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 [...]
Read More
Oldest decompression diver

Oldest decompression diver

By   Jeffrey Gallant  /  Apr 6, 2017
Gregg Bemis (USA), 76, made a 62-minute dive on the wreck of the RMS Lusitania (Ireland) in July 2004. The Lusitania lies at a depth of 92 m (300 ft) [...]
Read More
First commercially built submersible in the USA

First commercially built submersible in the USA

By   Jeffrey Gallant  /  Apr 19, 2017
The Asherah, capable of reaching a depth of 183 m (600 ft) and a speed of 4 knots, was launched about one month before Alvin in May 1964. It was designed [...]
Read More
Largest isopod

Largest isopod

By   Jeffrey Gallant  /  May 9, 2017
Giant isopod (Bathynomus giganteus) — The largest known deep sea isopod whose average length is between 19 and 36 cm (7.5 - 14.2 in), reaches up to 76 cm (30 in) and 1.7 kg [...]
Read More
Biggest litter [Shark | Viviparous]

Biggest litter [Shark | Viviparous]

By   Jeffrey Gallant  /  Apr 26, 2017
The blue shark (Prionace glauca) has litters up to 135 pups. Viviparous sharks, including the blue shark, give birth to live young. After [...]
Read More
Largest barrier reefs

Largest barrier reefs

By   Jeffrey Gallant  /  May 25, 2017
Great Barrier Reef (Australia) — Over 2,300 km (1,400 miles). The Great Barrier Reef is made up of over 900 islands and 3,400 reefs. It is the largest structure on the planet built by living [...]
Read More
Deepest wreck dive [Men]

Deepest wreck dive [Men]

By   Jeffrey Gallant  /  Apr 5, 2017
236 m (774 ft) — Alessandro Scuotto (Italy), Mario Marconi (Italy) and Pim van der Hofirst (The Netherlands). Wreck of the Milano, Lake Maggiore [...]
Read More