Bletchley Park is open daily. You can book your ticket online or purchase a ticket when you arrive.
Bletchley Park is open daily with lots to see and do. Find all the information you need to plan a visit, from how to get here to the facilities we have on site and our accessibility information.
Your support is more crucial than ever and, if you feel able to donate, we would be so grateful for your contribution. Your support will help enable us to safeguard the site and Trust.
Discover how Bletchley Park was vital to Allied victory in WW2. A place of exceptional historical importance, Bletchley Park is also the birthplace of modern computing and has helped shape life as we know it today.
Families can expect an exciting, fun-filled full day out, exploring the collections with hands-on displays and interactives. With plenty of outdoor space and so many different areas around the park to explore, go on an adventure and uncover some surprising stories!
There is something for everyone to see & do, read on to find out more and plan your visit today.
We have a range of permanent and temporary exhibitions for you to enjoy, housed in our historic buildings, they piece togeher the stories of Bletchley Park.
We have a range of events to enjoy at Bletchley Park throughout the year.
We have a delicious range of food and drink options for you to enjoy. Our Café in Hut 4 and Coffee shop in Block C are open daily.
Discover more about what you can find at Bletchley Park
Explore Bletchley Park’s stories, find out more about the history of the site, the people who worked here.
Join as a Friend or find out other ways you can support the work of Bletchley Park Trust
As a Friend, you can enjoy free unlimited year-round access to our heritage site and museum, plus a range of other benefits including exclusive events, previews and discounts.
Sponsor a brick in your name, in memory of a loved one or in the name of a Veteran to commemorate their wartime achievements.
Volunteers are vital to the running of Bletchley Park and an integral part in delivering an exceptional experience to thousands of our visitors each year. Come and join our team of valued volunteers where you’ll help make a real difference.
We offer award-winning learning sessions tailored to pupils of any age.
Start here to find out more information about Learning opportunities at Bletchley Park
Our very own bursary scheme, funded by kind donations from external organisations, charities and individuals, allows eligible schools to experience Bletchley Park’s Learning programme for free.
Book an onsite learning visit.
Essential information for your learning visit to Bletchley Park
Book a virtual learning session.
Book an outreach learning visit.
The Bletchley Park Roll of Honour lists all those believed to have worked in signals intelligence during World War Two, at Bletchley Park and other locations. Compiled from information in official sources, publications and provided by Veterans, friends and families.
The Bletchley Park Roll of Honour lists all those believed to have worked in signals intelligence during World War Two, at Bletchley Park and other locations.
The Roll of Honour has been compiled from information in official sources, publications and, most importantly, that provided by the veterans themselves, their former colleagues and families.
Find out about our Codebreakers' Wall, our commemorative wall for the Veterans, families & supporters of Bletchley Park.
Learn how to sponsor a brick and discover our digital Wall.
Find out more about the Bletchley Park Trust - who we are and what we do.
During the interwar period GC&CS focused some of its workforce on the threat from Bolshevik Russia. In the late 1920s Russia began using one-time pads to encrypt their most important communications. The system involved using a sheet of randomly generated numbers taken from a larger pad which would only be used once. The sheets are disposed of after use, so the existence of one-time pads is rare. This example shows a Foreign Office ‘out’ one-time pad which was declassified by GCHQ in 2008.
When war broke out on 1 September 1939, parts of SIS and GC&CS had already moved to their war-time home at Bletchley Park. During this time the organisation grew under the leadership of Alastair Denniston. In his diary from 1940 Denniston, amongst jotting down meetings arranged with the leading figures at Bletchley Park, also notes when his son’s half-term falls and when he’s scheduled to play in a tennis tournament. On one of the final pages in the diary, Denniston has made notes from a meeting. The ‘C’ mentioned here is likely Stewart Menzies who became Chief of the Secret Service in 1939, and thus had overall authority over GC&CS.
Bletchley Park staff began to disperse after VE-Day and VJ-Day. Some BP Veterans continued to work with GC&CS but many went back to civilian life. Muriel ‘Mimi’ Gallilee worked as a copy typist for the Director’s Secretariat. She continued to work with GC&CS until September 1946. Clive ‘Joe’ Loehnis wrote Gallilee several references when she was looking to leave the department. Clive Loehnis would become GCHQ’s fourth Director in 1960. Gallilee would go on to work as a BBC researcher for 22 years.
This draft of an order released on 27 December 1945 indicates that GC&CS were re-organising their workforce. The final arrangements for a permanent move to Eastcote were still under consideration, including salaries and the number of staff to be taken on. The staff employed at Bletchley Park peaked at over 9,000; the cohort which transferred to Eastcote in early 1946 was a much reduced 1,000 employees.
Barbara Start moved to Bletchley Park in March 1945 and was considered for the move to Eastcote in January 1946 to the ‘permanent organisation’. Start was a candidate for Grade CV which was reserved for university graduates. The letter also implies that the offer of employment was conditional depending on the final budgets designated to GCHQ by the Treasury.
Barbara Abernethy, who had joined CG&CS before the outbreak of WW2, worked as Denniston’s personal assistant. Abernethy continued to work for GCHQ after the war at Eastcote. This letter from Alan Rousseau Bradshaw to Miss Abernethy is dated 10th May 1945, just a couple of days after VE-Day. Bradshaw had overseen the administration of GC&CS throughout the war. Here Bradshaw expresses his thanks to Abernethy for her service as he resigns from his post as Deputy Director (2) of GC&CS.
Arthur ‘Bill’ Bonsall was promoted to head of Air Section at Bletchley Park in July 1945 largely in order to prepare for the move to Eastcote. During his time at Bletchley Park Bonsall had been responsible for ‘BMP’ reporting, which took its acronym from the three co-creators; Arthur Bonsall, William Millward and Frederick Seaton Prior. These reports provided summaries of intelligence derived from Luftwaffe voice traffic. This document from June 1944 is Bonsall’s own copy of a BMP report on fighter patrols. Bonsall would become Director of GCHQ in 1973.
After VE-Day, staff who were responsible for specific Sections during wartime began compiling official internal histories which would be retained by GCHQ. Taken from Volume VIII, of 24 volumes on the history of Naval Section, this page details the information gathered on U-Boat U-129. Across 444 pages, all the information gleaned by Bletchley Park on German U-Boats is charted. Here we can see that, along with all the commanders of the vessel, intelligence was also able to pinpoint specific dates of the movement of each U-Boat.
The complexity of terminology used within GC&CS during the war meant that it was necessary to compile an index of abbreviations used in the internal Sigint histories. The index is composed of almost 1,000 cards which include acronyms for role titles within GC&CS as well as abbreviations for enemy forces. This card shows the definition of C.S.S. as Chief of the Secret Service, known as ‘C’.
The experience of Bletchley Park Veterans, whether they continued to work for GCHQ or not, would stay with them over the years. Former colleagues Harry Hinsley and Mimi Gallilee corresponded with each other in the mid-1990s. This extract from a letter to Hinsley from Gallilee mentions that it has been 50 years since she last spoke to him. Having read ‘Codebreakers: The Inside Story of Bletchley Park’, which was edited in part by Hinsley, she felt compelled to get in touch as the book had brought back so many fond memories.