Lake Mead NRA features water recreation, including boating, swimming, and fishing, on both lakes as well as the stretches of river between the lakes. It also features hiking trails and views of the surrounding desert landscape. Three of the four desert ecosystems found in the United States — the Mojave Desert, the Great Basin Desert, and the Sonoran Desert — meet in Lake Mead NRA. Tours of Hoover Dam – administered by the U.S. Bureau of Reclamation – are also a major attraction within the recreation area.