Sounds like you're going to have lots of fun... Let's start with an "easy" one:
In a near forest trail (if you have access to one), go hiking in full day, when you find a semi-secluded spot (where someone might pass, not crowded, but you're not completely alone), start taking off your clothes, one by one and leave them behind trees (one for each tree, not all behind the same). Keep walking until you're fully nude and then 10 more minutes. Then go back the same route to take your clothes back - IF they're still there