Climbing
A significant fraction of my non-working time is spent on climbing/mountaineering/ski touring and other outdoor "adventure" activities. While one could rightly say that such pursuits are self-indulgent, pointless and dangerous, they are also the source of most of my friendships, an excellent reason to travel to out of the way places, and the only reason I get any exercise. This page contains links to trip reports of trips I've taken: