Diving on the Aquarius? Been there, done that, got the bottom time.
Keep up with NASA NEEMO live stream: http://www.ustream.tv/aquariusreefbase.

NEEMO is a NASA analog mission that sends groups of astronauts, engineers and scientists to live in Aquarius, the world's only undersea research station, for up to three weeks at a time. The Aquarius habitat and its surroundings provide a convincing analog for space exploration. More info on NEEMO: http://www.nasa.gov/mission_pages/NEEMO/index.html
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