The environment is strictly non-sexual; staring or suggestive behavior is a major breach of etiquette and can result in expulsion. 📜 The "Golden Rules" of the Sauna
Most public saunas are co-ed (mixed-gender), though some facilities offer "Ladies Only" days.
The foundation of German sauna culture is , or "free body culture". In Germany, saunas are almost exclusively textilfrei (textile-free).
If you were to step into a German sauna, you would be expected to follow these specific protocols often cited in "survival guide" videos: An expat survival guide to German saunas - IamExpat.de