Two Harbors, colloquially known as "The Isthmus", is a small unincorporated community island village on Santa Catalina Island off the coast of Southern California with a population of 298 (Census of 2000). It is the second center of population on the island, besides the city of Avalon. It is mainly a resort village. It has only one restaurant, one hotel, and one general store. The village has about 150 permanent residents who live on the isthmus year-round. One notable feature was the little one-room schoolhouse which closed in 2014.
Two Harbors is a small island village located approximately 37 km (23 miles) from San Pedro Harbor on Santa Catalina Island. On the island's narrow isthmus, it is located about 18 miles from the only city in the Island, Avalon. It is named for the two harbors separated by the 770m section of land separating the leeward (northern) Isthmus Cove (aka Banning Harbor) and Catalina Harbor (or Cat Harbor on the windward (southern) side, which together almost cut off the northwestern sixth (31.7 km²) from the main part of the island. White Rock Island, commonly known as Bird Rock, is a small privately owned island only 6312 m² in size. It is approximately 1.4 km (0.87 mi) northeast of Two Harbors, offshore from Isthmus Cove, and 470 m (1,540 ft) northwest of the closest coastal point.