Bletchley Park, home to the codebreakers of World War Two, will again be holding its popular Classic Car and Motorbike Picnic in the grounds of the 19th century Mansion, surrounded by Second World War Codebreaking huts. 
A discount on entry will be offered to owners of classic vehicles: entry will be £5 per car and £3 per motorbike, regardless of how many people are in each vehicle.  (Normal admission £10 per person)
Last year Bletchley Park hosted over 200 classic vehicles, including a 1924 Rolls-Royce Open Tourer, a previous ‘Car of the Event’ winner and many car clubs such as Harley Davidson 1066 and Capri Club Milton Keynes.  Also featured were two 1930's Austins featured in the film ‘The Eagle Has Landed’, a Talbot and 1938 Ambulance used in the film, ‘Enigma’.  Already confirmed for this year are the Tin Solider Scooters.
Bletchley Park has a wide range of permanent exhibitions and private collections. It is also home to The National Museum of Computing, which houses Colossus, the first ever electronic semi programmable computer. 
The Bletchley Park story is told in the main Block-B museum, where visitors can see the famous Abwehr Enigma Machine, back on display after its dramatic theft in 2000. 
Also on display are the Lorenz, other mechanical cipher systems and the Bombe Rebuild; a Bomber Command exhibition and a Home Front exhibition, which features rationing, evacuation and the Blitz; Milton Keynes Amateur Radio Society; the Oxf. & Bucks L.I. at Pegasus Bridge display; and the 65th Nachrichten Abteilung German Signals Group. 
Other things to see around the Park are the Churchill Collection, which provides a unique glimpse into the spirit of the man who famously described the workers of Bletchley Park as “The geese that laid the golden eggs - but never cackled”; the Projected Picture Trust (1940's cinema screening wartime show reels); the Toys and Memorabilia Collection, with playthings and domestic artefacts from the 1930’s and 1940’s; the Maritime Display and Model Railway exhibition; Hut 1, home to the Diplomatic Wireless Service; the Bletchley Park Post Office, believed to have been an undercover mailroom during the war; the Bletchley Park Garage, with a number of vintage vehicles; and the Victorian Mansion, all in a parkland setting with a lake, wildlife and a children’s play area.
The café in Hut 4 serves refreshments and light lunches and the gift shop sells a range of books, DVDs, CDs, gifts and toys.  Bletchley Park is easily accessible by car from the A5 and J13 and J14 of the M1.