18°59′50″N 112°03′54″W / 18.99722°N 112.06500°W
Roca Partida (English: Split Rock) ranks as the smallest of the four Revillagigedo Islands, part of the Free and Sovereign State of Colima in Mexico. The uninhabited island (Latitude 19° 0'2.53"N, Longitude 112° 4'5.35"W) encompasses an extremely small area. Many divers rank it among the most beautiful dive sites in Mexico.[citation needed] Divers must obtain permits from the Mexican Armed Forces to enter the military zone surrounding the island.