If you’re looking for a clothing-optional resort in Mexico, you might have noticed that there are only a handful, and most are in the Tulum area, as it’s traditionally been more relaxed about nudity. Keep in mind that while some advertise clothing-optional beaches, nudism is prohibited federally, and all beaches in the country are public despite claims to the contrary. With lots of new construction going on, if you bare all on the beach, you’ll run the risk of complaints from other guests at resorts and villas nearby or from local residents, which may lead to problems with the authorities too.
While you might get away with taking it all off to prevent those tan lines, if you don’t want to take the risk, you’ll need to wear a bathing suit at the beach and stay in a private home or villa rental or one of the resorts mentioned here.