Boathoist Cave is located in a British Overseas Territory that has how many inhabitants ?
Gibraltar Gibraltar ( , or other permutations; ] ) is a British Overseas Territory located on the southern end of the Iberian Peninsula. It has an area of 2.6 sqmi and shares its northern border with Spain. The Rock of Gibraltar is the major landmark of the region. At its foot is a densely populated city area, home to over 30,000 Gibraltarians and other nationalities.
Portsmouth Portsmouth ( ) is a port city in Hampshire, England, mainly on Portsea Island, 70 mi south-west of London and 19 mi south-east of Southampton. It is the United Kingdom's only island city and has a population of 205,400. The city forms part of the South Hampshire built-up area, which also covers Southampton and the towns of Havant, Waterlooville, Eastleigh, Fareham, and Gosport.