The headline says it all: Police powerless on outdoor orgies:

Dutch police and park rangers have admitted they are powerless to stop a growing trend of outdoor sex orgies.

In the latest incident, a large group of people were found romping naked on a beach in the Bussloo area of the country.

Then again, a perusal of just about any "voyeur" or "creative nude" site tends to reveal the people who most want to be seen naked are (in general) those who really should put some clothes on. Rrrmm... so I've been told. Yeah, told.