Garmin Descent MK2 Dive Computer Stainless steel with black bandExplore both of your worlds, underwater and topside, with Descent Mk2, the watch sized dive computer. It features multiple dive modes, such as single and multiple gas dives, gauge, apnea, apnea hunt and closed circuit re breather. The Descent Mk2 comes with ABC sensors with an underwater 3 axis compass as well as surface GPS capabilities to mark your entry and exit points(GPS tracking does not work underwater). On land, Descent Mk2 doubles as a