Boathoist Cave is located in a British Overseas Territory that has how many inhabitants ?
Boathoist Cave: Boathoist Cave (or Boat Hoist Cave), also known as Bulman's Cave, is a huge sea cave on the south eastern flank of the British Overseas Territory of Gibraltar. Gibraltar:  At its foot is a densely populated city area, home to over 30,000 Gibraltarians and other nationalities.
over 30,000