Island of Pag is fifth largest island in Croatia, but the one with longest coastline. It has unique landscapes and thanks to the "bura" - famous Croatian wind - it has very little vegetation, so some parts looks like they are from another planet. Island of Pag is famous mostly for its cheese, salt and lice.
Nudist beaches, camps and resorts are as you already know no-clothes zones. But the fact that you are getting rid of your clothes does not mean that you can get rid of your manners! As the matter of fact good manners are must in nude society. Most naturist or nudist resorts have their own rules