Hugh Town (Cornish: Tre Huw) is the main and largest settlement on the Isles of Scilly. The town is situated on the island of St. Mary's located on a narrow isthmus which joins the peninsula known as the Garrison with the rest of the island. The main street is the main shopping area on the islands and business is quite reliant on tourism. There are also banks, hotels, pubs and a small hospital. There are several beaches. A notable building is the Star Castle, which overlooks the town and is now a hotel.
The principal harbour of the islands is located on the northern edge of the town and is the terminal of the ferry to Penzance, currently the Scillonian III and the cargo vessel Gry Maritha. The original quay was built in 1593 and an extension (or offshoot) began in 1836 to Rat Island under a contract of £4,000 to William Martin of Penzance. Martin resigned in November 1837 and Augustus Smith organised the completion. The enlargement of the harbour produced an increase in harbour dues as larger and deeper-draughted boats were now able to dock for loading, unloading, repairs or victualling. In 1889 Augustus Smith's successor T A Dorrien-Smith extended the pier a further 250 feet eastwards, at his own expense, so that the West Cornwall Steam Ship Company ships could dock. Despite Parliamentary opposition a Pier and Harbour Provisional Order Bill passed in June 1890 gave him revenue from the harbour dues.