SEAC archeologists are currently taking

SEAC archeologists are currently taking required, tri-annual scuba
diving training. Terry Helmers (BISC volunteer), Steve Sellers (NPS
Dive Safety Officer), and James Grunden (CHIS) demonstrate use of
NPS’s new one-person portable hyperbaric chamber. This device can be
used to treat injured divers in the event of a decompression incident.
http://ow.ly/i/5MwKB