The small town of Castletown is the former capital of the Isle of Man, containing narrow streets and little fishing cottages. The harbour is still in use as a fishing port for the island.
The Nautical Museum, near the quay on Bridge Street tells the fascinating story of the town's maritime past. Inside the museum's boathouse lies the 18th century armed yacht 'Peggy', who's discovery led to the formation of the museum. On the opposite site of the harbour, in the heart of Castletown, stands the 12th century Castle Rushen, one of Europe's most finely preserved medieval castles. Once the fortress of the Lords and Kings of Mann.