Port Vila is the capital of Vanuatu, a Y-shaped archipelago of 83 islands in the southwestern Pacific. For 74 years, the country was a unique political entity known as the New Hebrides, an Anglo-French Condominium jointly ruled by the UK and France—a 'two-headed' administration that led to duplicate systems for everything from police to currency. Vanuatu is the birthplace of 'Nagol' (land diving) on Pentecost Island, which is the ancient precursor to modern bungee jumping. The capital, Port Vila, is known for its incredible linguistic diversity; while the official languages are Bislama, English, and French, the country has over 100 indigenous languages, giving it the highest density of languages per capita in the world. Port Vila is also home to the world's only underwater post office, located in a marine sanctuary where divers can post waterproof postcards.