Original sentence: For privacy reasons, there is often a prohibition on cameras (including cell phone cameras) at nudist venues, aimed at preventing photography without consent.However, the nudist culture has its own rules of etiquette.Nudists consider it essential to sit on a towel whenever sitting on a chair, bench, or anything else where others might sit, and they consider it very poor etiquette not to.Other rules may include a prohibition on pets, weapons, loud music, etc.These policies vary between nudist sites, and nudists recommend that new visitors make themselves aware of the specific rules prior to a visit
Edited sentence: Also, never sit on someone else's towel.Always check the specific rules before visiting a new nudist site, as policies vary.However, manners are important.It is very poor etiquette to sit on a chair, bench, or anything else where others might sit without your towel.Other rules may include a prohibition on cameras (including cell phone cameras), pets, weapons, loud music, etc.The most essential thing to bring to any nudist site is a towel to sit on