Malibu Lagoon State Beach, also known as Surfrider Beach, is a one hundred ten-acre California state beach established in 1951 where Malibu Creek meets the Pacific in a coastal estuary within the Santa Monica Mountains National Recreation Area. It is both a valued natural area and a recreation site, supporting migratory birds along the Pacific Flyway and protected snowy plovers, while also undergoing estuary restoration by public agencies. The beach became internationally famous for surfing near Malibu Pier, where its right-hand break helped shape Southern California surf culture in the 1960s. In 2010, it was dedicated as the first World Surfing Reserve for its celebrated surf and sensitive lagoon ecosystem.