St Mawes Castle

St Mawes Castle is a remarkably intact Tudor artillery fort built by Henry VIII to defend against invasion. Perched on a headland, it offers panoramic vistas across the Fal Estuary and out to the English Channel. Visitors can explore the circular keep, gun platforms, and exhibitions on Tudor military life. The castle’s clover-leaf shape and thick stone walls make it a distinctive example of coastal defense architecture. Its position also provides a perfect spot for photography and picnicking while watching boats navigate the estuary.

Don't miss

• Climb to the top of the keep for 360-degree views of the coast and estuary.
• Examine the original Tudor gun ports and cannons on the lower gun deck.
• Walk the ramparts and imagine the castle’s role in defending against the Spanish Armada.

Tickets & tours

Ways to visit St Mawes Castle

Cheapest way inGuided tour of Castillo Colomares4.6★ · 58 travelers~1 hourFree cancellationFrom$10 per personSee dates →Best full dayGalway to Cliffs of Moher, Aillwee Cave & Dunguaire Castle Tour4.9★ · 3,432 travelers~8 hoursFree cancellationFrom$76 per personSee dates →Private & flexibleHampden Estate Rum Tour and Lunch from Falmouth5★ · 21 travelers~4 hoursFree cancellationFrom$172 per personSee dates →