Come on board our Mercedes Vito VAN and come discover beautiful views in Terceira Island with us. We personalize the Tour to your wish and likes, we will show you what our Island has best to offer, and tell you about life in this beautiful Island, be in contact with nature. Terceira (Portuguese pronunciation: [tɨɾˈsɐjɾɐ]) is an island in the Azores archipelago, in the middle of the North Atlantic Ocean. It is one of the larger islands of the archipelago, with a population of 56,000 inhabitants in an area of approximately 396.75 square kilometres (153.19 square miles). It is the location of the Azores' oldest city, Angra do Heroísmo, the historical capital of the archipelago and UNESCO World Heritage Site; the seat of the judicial system (Supreme Court); and the main base of the Azores Air Zone Command (Portuguese: Comando da Zona Aérea dos Açores), Base Aérea nº 4, and a United States Air Force detachment