This summer I spent my summer holidays with my family (wife, son 10 & daughter 3) in small fishing village Rowy at Baltic Coast (near S│upsk). This village is located at boundaries of S│owi±ski National Park and famous of its naturist beach. The beach is clean and sandy however sometimes there are problems with small stones that sea brings to the seashore.
The village is located at mouth of úupawa River. Western part of beach is rather narrow and occupied only by textiles. Eastern part is wider and there is only one textile beach. After walking 15-20 minutes you will notice mast with blue flags (it sounds better then it looks! in fact it is a big branch with several blue plastic films) - you entered naturist beach. I was in Rowy 6 years ago: now naturist beach is at least twice nearer to textile beach. As I know "natives" accepts naturists and there are no conflicts (in contrary to old "naturist capital": Cha│upy).
This summer the weather in Poland was almost catastrophic (esp. in July) so I was happy with 5-6 sunny days during our 14 days stay (only the last day was really warm).
We had to walk almost an hour to get to naturist beach. But we did not regret this effort! The beach was not very crowded but you should consider bad weather and that it was almost out of season. I have read about problems with "gender balance" especially in USA. On our beach it was always 1:1! Among sunbathers you will find mainly couples (in all ages!) and families. You will hardly find single man or groups of men. But sometimes you could meet groups of women (sometimes with children) and even single ones. There were also mixed groups - naked with textiles. It was really CO beach: everybody was (un)dressed as he/she wanted and nobody cared!
The atmosphere was relaxing and nice. We had only two problems: