FKK club
An FKK club is a German-style sauna or wellness club (from Freikörperkultur, "free body culture") combining nude relaxation with a sex-positive setting.

FKK stands for Freikörperkultur — "free body culture" — Germany's long tradition of social nudity. An FKK club combines that relaxed, clothing-free wellness setting with a sex-positive atmosphere, typically featuring saunas, pools and lounges.
FKK venues are especially common in Germany, Austria and Switzerland, and they vary widely in character: some are primarily wellness and naturist; others are firmly part of the adult scene. Knowing a specific club's focus before visiting avoids any misunderstanding.
For travellers, FKK clubs offer a distinctly Central-European take on the lifestyle: nudity as ordinary rather than charged, comfort-first design, and an etiquette built around relaxation, respect and consent.
Frequently asked
No. FKK simply means social nudity; some FKK venues are wellness-focused, others are part of the adult scene. Check first.
It is most common in Germany, Austria and Switzerland, though the concept appears across Europe.