There are no regulations enforcing these divisions, it is just the way things have evolved over the years.
Gay Nudist Beaches in SitgesThere is a number of nudist beaches in Sitges.
- Playa De Las Balmins is the mixed nudist beach in Sitges.
- There is another gay nudist beach in Sitges at Cala del Home Mort.
- Clothing is optional at Platja Sant Sebastia and Platja d'Aiguadolc too.
Note that, in theory, any beach in Spain can be a nudist beach. Nudist beaches 'evolve' through precedent. Secluded beaches become nudist beaches as people start to strip off. The other side of this coin is that at, on a very quiet day, it is possible that you may arrive and there are nudists there, but a family enjoying a (clothed) day at the beach. Respect those around you and think before you take your speedos off. Read more about Nudism in Spain: Is It Legal?