The harbour serves as the mainland terminal for services to and from the Isles of Scilly, primarily served by the Isles of Scilly Steamship Company. A regular freight service sails from the harbour year-round and between March and November the Scillonian III offers a passenger service for those travelling to the islands for a day trip or longer.
A number of project cargoes have been handled through the port and during recent years it has seen the return of cargo arriving under sail. The wet dock is ideally suited for vessels sheltering on passage.
The wet dock can handle commercial vessels up to 85m, beam of 12m and draft of 4.5m. The harbour can also facilitate loading and unloading of wheeled vehicles via the slipway in addition to the quayside facilities.
A number of commercial business premises are available to let around the harbour estate.