02/09/2026
Something unusual is happening at Colchester Castle on Saturday 5 September...
As part of Invasion Colchester, we're offering half-price admission all day, making it the perfect time to explore 2,000 years of history, interactive displays and the spectacular Museum of the Moon.
Whether you're dressing up as your favourite character or just looking for a great day out, add Colchester Castle to your Invasion Colchester plans.
Reduced-price tickets are available in person on the day from the Castle front desk.