Diving. Never really got into it. I guess when I'm climb_ca's age and can no longer stand up without scratching my balls and groaning, I'll get into it. It's also really expensive, the destinations, the gear, plus it it's not very portable, I mean with a pair of slippers and a chalkbag, you can climb anywhere. Here's something for those of you who have disposable income because at 1.5k, that's a lot of scrilla.

The DATAMASK contains a miniature liquid crystal display (LCD) panel, proprietary Digital Optic System, microprocessor, depth transducer, wireless cylinder pressure receiver, diver replaceable battery, and controlling software. The miniature LCD allows you to keep your eyes focused on the dive while presenting critical dive data including: current depth, elapsed dive time, cylinder pressure, and dive time remaining. The Digital Optic System provides a clear, highly magnified image of the LCD, which is viewable regardless of environmental conditions and may be seen clearly by the vast majority of people, regardless of vision.