Dr Jon Henderson investigates the ruins of the pirate city, Port Royal, hidden beneath the waters of Jamaica's Kingston Harbour after an earthquake and tsunami destroyed the city in 1692. Two thirds of the city sank in minutes, and 5,000 people died in the catastrophe and its aftermath. Since Port Royal's rediscovery in the 19th century, numerous excavations of the site uncovered ruined buildings and pirate treasure. Using the latest high-tech survey equipment, Jon reveals the full extent of the 33-acre sunken city for the first time, offering new visualisations of Port Royal and its devastating end.