My DS loves to be naked too and he especially loves jumping on his mini-trampoline naked.

When I was little we lived in a quiet neighborhood with a huge field across the street. All the neighborhood kids would play there all day and even after supper after it was dark we would all meet there to play hide-and-seek. We would also hop on our bikes and be gone all day exploring other neighborhoods and parks. It seemed so much safer then. DS won't get to do that.