It's unbelievably mind-blowing to realize the sea is much deeper than even the loftiest part of land above sea level.
Nitrox diving safety, skills and more bottom time .
Nitrox diving is becoming more popular with divers everywhere -- find out why…
Mares Smart Air / Nitrox Dive Computer Watch, Mares, Smart Air / Nitrox Dive Computer Watch, 414129, Computers, Computers - Wrist, Hose Mount & Modules with reviews at scuba.com
Oceanic Datamax Pro Plus Scuba Diving Computer - The Oceanic Data Pro Plus Nitrox Dive Computer is a full function Air Integrated Air/Nitrox Dive Computer