![](http://www.alamy.com/thumbs/6/D9040112-8224-4871-90F1-E8B1B5D899EE/DR40N0.jpg)
Scuba diver oxygen tank before doing a rescue dive
Greifenhagen 710-6222 CD1131
Size: 3888px × 2592px
Location: Okauchee Lake, Oconomowoc Wisconsin USA
Photo credit: © Nancy G Fire Photography, Nancy Greifenhagen / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: 911, air, bag, communication, department, dive, diver, emegency, emergency, equipment, identification, lake, male, oxygen, person, profile, ready, recovery, recreation, regulator, rescue, responder, rope, scuba, search, stressful, sucba, swim, tank, team, tourism, upset, valve, water, watercraft, weight