I would like to give nude water skiing a try. No life jacket(PFD) or anything, to be totally nude while doing it. Cruising along at 35MPH for miles on the river with nothing on but a smile. But if the law caught me doing it I would end up with two tickets. One for indecent exposure and one for skiing without a PFD. Maybe if I can find a long stretch of uninhabited river, or at least if anyone else was out there it wouldn't be a game warden, someone just to wave at and keep going.
I often go mountain biking nude. It's a great way to get far away from the well worn trails and it saves getting your clothes dirty! There is nothing like the feeling of being several miles from your clothes. I'd love to try other extreme sports too. So far I've only tries surfing and hiking but the possibilities are endles if you have the courage.
some possibilities (I've only tried some of these, so far ..) :
rock climbing, and abseiling
snow skiing, and snow shoeing
mountain-biking, and BMX
scuba diving, and skin diving
canoeing/kayaking, and rafting
Maybe some outdoorsy activities that may not normally be considered as "extreme" activities - such as hiking, cross-country skiing and snow-shoeing, bicycling (on road..), and horseriding - could become more so when done nude ??