Isla Todos Santos is a pair of islands about 19.3km (12mi) off Ensenada, Baja California at 31°47′59″N 116°47′20″W / 31.79972°N 116.78889°W / 31.79972; -116.78889Coordinates: 31°47′59″N 116°47′20″W / 31.79972°N 116.78889°W / 31.79972; -116.78889 best known for surfing. Access is only by boat, which can be rented out from Ensenada, or La Bufadora. The waves off the smallest island are some of the biggest waves in the North American continent, rivaled in size only by Maverick's and the Cortes Bank.
The islands are (or were) home to Aimophila ruficeps sanctorum, an endemic subspecies of the Rufous-crowned Sparrow, but it is probably extinct. There is also a subspecies of the California mountain kingsnake, the Todos Santos Island Kingsnake, Lampropeltis zonata herrerae (Van Denburgh & Slevin, 1923). The type species of the fish genus Bajacalifornia, Bajacalifornia burragei, was discovered during the USS Albatross deep sea expedition off the coast of Todos Santos Bay in 1911.