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Owner description: BLUE BADGE PARKING ONLY IS AVAILABLE. OTHER PARKING PLEASE USE LOCAL PAY & DISPLAY. Head through the imposing gatehouse and step into 3,000 years of history. Explore the castle headland with one of our experienced guides for FREE or embark on your own journey through history with one of our audio tours and gain a fascinating insight into its past, from Iron Age settlements, to the Roman signal station and medieval chapel. The castle's heyday was in the 12th century when it was developed by Henry II and King John. This mighty castle has seen action in some of England's most defining battles. It was twice besieged by Parliamentarians in the Civil War, and has defended king and country from the Jacobites, Napoleon and the German Kaiser, when it came under bombardment during the First World War.