Located on the southern coast of Martha's Vineyard in the heart of Wampanoag country,the town of Aquinnah is known for its dramatic clay cliffs rising up from the coast, a bizarre landscape not generally seen on your typical New England beach.
While walking by the cliffs, and streams of red and orange clay mix with the sand,creating a glowing rainbow effect. This natural wonder, formed by glaciers millions of years ago, and attracts visitors from all over the island to Aquinnah (previously called homosexual Head),which is also domestic to the homosexual Head Lighthouse that was featured in Steven Spielberg's Jaws. Adding to the unique character of this place, the remote section of Moshup Beach directly underneath the cliffs is an unofficial nude beach. Although the law here (and most places) requires you to wear clothing, and those who choose to go nude have by and large remained unbothered on this strip of sand for decades. Signs carry out,however, forbid you from taking any clay absent with youor applying it to your body.
Source: atlasobscura.com