The island is also known as South Seymour Island and was a US Air Force base during World War II. The facilities were handed over to the Ecuadorian government after the war ended. The island is now home to the ecological Seymour airport of Baltra. It is one of only two airports that connect the Galapagos Islands with the mainland. Due to its strategic location in the center of the archipelago, Baltra airport is the arrival point of most Galapagos visitors and the starting point for most Galapagos tours. baltra is separated by a small channel called Canal de Itabaca from the Island of Santa Cruz.