History Hero Motion with text that reads 'Chelmsford Code Breakers'.

Sessions are on Tuesday 5 to Thursday 7 August and Tuesday 12 to Thursday 14 August.

From the Romans to World War Two, humans have used cyphers and codes to conceal secrets and create puzzles. Join us at the Museum where we decipher morse code, the Caesar Cipher and other puzzles before making our own! 

Activities are suitable for ages over 6 years old. All children must be accompanied by an adult, who can attend for free, including entry to the museum.

Prices are staying the same as last summer! Museum members still pay just £5 per child when booked in advance (before 10am on the day).

Admission: One free adult per child/attendee, additional adults pay the museum admission fee of £4 unless they hold a membership.

Parking: Parking at the museum is free for up to 2 hours. Attendees of paid 2-hour holiday events can collect an additional 1-hour parking permit from the front desk.

Booking: If you have a login with Chelmsford Theatre to make event purchases, you will be able to use the same login details with us! Please visit our Privacy Policy for more information.