Paul pre-breathing his optima before the dive gives the OK signal.

Paul, pre-breathing his optima before the dive, gives the OK signal. Image courtesy of Jill Heinerth, Bermuda Deep Water Caves 2011 Exploration, NOAA-OER.

 

Related Links

Bermuda Deep Water Caves 2011: Dives of Discovery

Bermuda Deep Water Caves 2011: June 21 Log

NOAA Ocean Explorer Gallery

Download high-resolution image (jpg, 4 Mb)