Gibraltar's main religion is Christianity. The great majority (78%) of Gibraltarians belong to the Roman Catholic Church. The sixteenth century Saint Mary the Crowned is the cathedral church of the Roman Catholic Diocese of Gibraltar, and also the oldest Catholic church in the territory.
Education in Gibraltar follows the English system and the schools follow the Key Stage system which teaches the National Curriculum.
Gibraltar is a small British Overseas Territory located at the southern tip of the Iberian Peninsula, at the entrance to the Mediterranean Sea. The primary source of freshwater for Gibraltar is desalination. Due to its limited land area and lack of natural freshwater sources, Gibraltar relies on desalination plants to provide its residents with a reliable supply of drinking water.