I would have to say moving at a steady 70mph on the Pennsylvania Turnpike lol. I was on my way home from Pittsburgh and decided at 3am to drive the last 2 hours home naked. I loved it sunroof open, windows down, and music LOUD!! :D
I drove 600 miles cross-country once...naked but at night. Put on shorts and a t-shirt only when I stopped for gas. I just wanted to see what it would be like!
I was hiking in a national park once when a thunderstorm broke out. I was quickly drenched, and being that I was far from my car and no one else was around, I decided that I'd be better off just running the rest of the way naked. So I bundled up my clothes and tied them behind my back. The feeling was actually quite exhilarating!
I think it's ok to push the envelope sometimes and enjoy nudity in a variety of different ways. While at the same time taking adequate precautions to not get "caught."
My wife & I have been nude with my sis-in-law & her husband in their pool or our hot tub. The bravest thing we did at first, was drive home nude from their house that we have done 3 times. We did obey speed limits. LOL Now we live out in the country & have gotten into the car & cruised around the countryside nude after dark several times. Again, obeing all traffic laws. It feels so relaxing & does add some sexual reactions. :)
The only actually daring things I have done was a time or 2 taken out the trash in the nude. My trash can sits beside my front door I did it at night with all the lights in my house and my porch light out. The only light was from a street light down the block. The only other thing I have ever done was to have sex with my first wife on our honeymoon without closing the tent flap. And I have driven around a time or 2 with my pants pulled down.
In my local park on a lovely Summers day. I tried to pick what I thought was a quiet woodland spot a bit off the beaten track, but close enough to people for a bit of a thrill, shame on me I know lol
Unfortunately or fortunately, depending how you see it, one guy decided he'd try out the area I'd picked and basically caught me fully nude. Thankfully he just stood and watched for a moment, then walked off.
Riding my Harley, with a girl friend wearing only boots and a doo rag down a major north/south interstate at 3:00 in the morning. The bike has a 200 mile range so we'd go @ 90 miles in some direction and then turn around and come back.
We finally figured if we wore chaps and vests, we could actually stop and fill with gas. The security cameras shouldn't see too much if we're careful.
By the way chaps are crotchless and there's no butt and the vests of course don't have to be closed unless you want.
Streaking up and Down and around my block that's about 3-4 miles long and My neighbor is a Sargeant and Her Wife/partner is a community service officer and I even past her house 2 or 3 times of course there would be times where I would have to duck down out of sight as cars would pass by once in a while this was in the summer at about 11-12 at night