One pair of small artillery forts, St. Catherine’s Castle was built by Henry VIII in the 1530s to defend Fowey Harbour. It was modified in the 19th century during the Crimean War and again during the Second World War, when it became home to an anti-aircraft gun and an ammunition store. 

For a really superb day out, St. Catherine’s Castle is a short distance from the South West Coastal Path and well worth the detour for walkers.

The impressive shell of the great 13th century circular keep of Restormel Castle is a few miles up the River Fowey in a beautiful spot. Explore the ruins, walk through the surrounding woodland and enjoy a picnic in the grounds.