Gunnison Beach

Gunnison Beach is a beach within the Sandy Hook unit of the Fort Hancock and the Sandy Hook Proving Ground Historic District which is the Sandy Hook Unit of Gateway National Recreation Area, on the Atlantic coast of New Jersey. It is located in Middletown Township, Monmouth County, but is on federal land managed by the National Park Service. It is New Jersey's only legal clothing-optional beach. It takes its name from adjacent Battery Gunnison, which visitors must pass next to in order to get to and from the beach.

Source: Wikipedia