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.
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.
The official currency is the Gibraltar Pound (GIP), which is divided into 100 new pence.
UK notes and coins are also accepted and have the same value, but Gibraltar Pounds are not accepted in the UK and any unspent Gibraltar Pounds should be changed before leaving.