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Thank you to everyone who took part.

Operation Bletchley is your Virtual Codebreaking Challenge. Cover 50 miles on foot and crack the codes as you go. Can you deliver your message to Winston Churchill before it’s too late?

How it works

Operation Bletchley is a virtual event that you can take part in anywhere in the world. Here’s how it works...
  1. Sign up and link your phone or fitness tracker to your fundraising page (you can also record your distance manually if you prefer)
  2. Start walking at your own pace
  3. Receive updates and codes to crack every 5 miles- three levels are available- junior, codebreaker or cypher expert
  4. Codes will be delivered straight to your inbox and you can select your level then
  5. Solve the codes to decipher the hidden message
  6. Complete the 50-mile journey and deliver the message to Winston Churchill by the 31st July

Your mission

It’s 1941 and the United Kingdom is in terrible danger. Luftwaffe bombs are raining down on towns and cities across the nation. The Royal Air Force guards the skies and the Navy protects the seas, but the threat of invasion has never been higher. German spies could destroy our telephone network at any moment, so the Home Guard is tightening up security around the capital.

Your mission is to help us secure a new line of communication from Bletchley Park to the Cabinet War Rooms in London. We need you to walk the 50-mile route, making contact with key agents to solve puzzles along the way. Can you figure out the code and deliver the message before it’s too late?

It is up to you how you would like to complete the walk, the challenge can be completed over a few days, or the whole month, but you need to reach the 50 miles before the 31st July 2019. You can crack the codes as you go or save them up until the walk is complete. Once all the codes have been successfully decrypted you must decipher the final message and deliver it to Winston Churchill.

Your journey

The difference your generosity can make

£50 - could help cover travel costs so a veteran can attend a job interview.

£75 - could go towards the cost of a temporary wheelchair ramp, allowing an injured soldier to enter and leave their home.

£250 - could contribute towards the care home fees of a frail elderly veteran who requires continuous care.

£1000 - could help pay for home adaptations so that a veteran’s young disabled child can live in a safe and accessible environment.

Our Codebreakers

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