Black's Beach is a secluded section of beach beneath the bluffs of Torrey Pines on the Pacific Ocean in La Jolla, San Diego, California, United States. It is officially part of Torrey Pines State Beach. The northern portion of Black's Beach is owned and managed by the California Department of Parks and Recreation, while the southern portion of the beach, officially known as Torrey Pines City Beach, is jointly owned by the city of San Diego and the state park, but is managed by the city of San Diego. This distinction is important as Black's Beach is most known as a nude beach, a practice that is now prohibited in the southern portion managed by the city of San Diego. Black's Beach was named for the Black family who had a horse ranch overlooking the beach. They sold the land, and then it was subdivided into La Jolla Farms lots. The Farms' residents retained the Black family's private road to the beach. Many mansions can be seen in the southern portion of the beach, including the Salk Mansion. There is a funicular that goes all the way down from a mansion on the cliff to the beach into a structure known by locals as the mushroom house. A submarine canyon funnels swells into Black's Beach, making it appealing to surfers but dangerous for inexperienced swimmers. Usually, lifeguards are at the beach until 6:00 p.m., year round. Due to budget cuts, lifeguard patrols were limited but have increased because of funding by UC San Diego. Stingrays can be found along the coastline when the water gets above 50 degrees. Location Black's Beach is about one mile north of the popular La Jolla Shores beach in La Jolla, San Diego, California, below the bluffs of Torrey Pines, which extend up to above the sandy beach. On the bluffs above Black's Beach are the Torrey Pines Gliderport, Torrey Pines Municipal Golf Course, Salk Institute for Biological Studies, and Torrey Pines State Reserve. To the north of Black's Beach lies the rest of Torrey Pines State Beach, which altogether stretches from Del Mar, California, past the Los Peñasquitos Lagoon toward Scripps Beach. To the east of Black's Beach is the campus of the University of California, San Diego. Nude beach Black's Beach in San Diego is one of the largest nude beaches in the United States and is popular with Southern Californian nudists and