In the woods
Go to the woods and undress, hanging each garment on a separate
tree (hide you keys somewhere else for security). Wen naked walk
100 yards/metres or more away from your clothes. Find a tree stump
to stand on. Now close your eyes (or use a blindfold) and
masturbate. Do not open your eyes until you have cum, even if you
hear something. Afterwards you can retrieve your clothes if they
are still there. Or you can leave them and go home naked.
If you are very daring, or want extra edge, just chose any open space and scatter your clothes around before walking away naked for your fun.Both your naked selfand your clothes will be very visible while you are pleasing yourself but you won't know if anyone is there.And you will be too far from your clothes to cover up quickly.