Good places to be exhibitionistic / voyeuristic and flashing in the Montana Area?

We all love seeing unexpected flashing or nudity with a naughty smile behind it. Where are some places to meet up and share our little desire with eachother in the Wonderboom / Montana and surrounds?

I am new to the area so I don't know where to suggest. Although I am excited and looking forward to some like minded comments

If you were to accidentally catch someone masturbating unawares, would you: