King John's Castle is open 9:30am-6pm, with last admission at 5pm. It is open 7 days per week.
It is recommended that you pre-book your visit to King John's Castle.
Visitors can try on historic costumes - 18th century dresses or chainmail tunics. You will also meet an array of colourful characters like Willem the cheerful Moneyer, the grim Constable Roger De Lees and more.