St Mawes Castle
Hop on the train to Falmouth (just 25 minutes from Truro) and explore the Tudor castles guarding both sides of the Fal estuary.
Pendennis Castle is a simple 10-minute walk from Falmouth Docks station (directions below). Then, for some fantastic views from the water, visit St Mawes Castle via the foot ferry from Falmouth's Prince of Wales Pier (regular service taking just 20 minutes).
Note - there is planned strike action on 27 & 30 July and 18 & 20 August 2022. More info