If you're interested in historical buildings, go ahead, visit Bletchley Park. But expect most of the exhibits to be buildings, living quarters, offices etc. and mundane descriptions of day-to-day life there, not exhibits about the technical/cryptological aspects (although they do have some of those too).
If you're interested in computer history and Bombe/Colossus, visit the much lesser known National Museum of Computing at the same site. https://www.tnmoc.org/
I spent way too much time at the the boring parts of Bletchley Park and as a result didn't have enough time for the Museum of Computing.
I'd recommend starting at the Museum of Computing, then if you have time left, the 1-2 buildings inside the official Bletchley Park museum that have the crypto exhibits.
If you're interested in computer history and Bombe/Colossus, visit the much lesser known National Museum of Computing at the same site. https://www.tnmoc.org/
I spent way too much time at the the boring parts of Bletchley Park and as a result didn't have enough time for the Museum of Computing.
I'd recommend starting at the Museum of Computing, then if you have time left, the 1-2 buildings inside the official Bletchley Park museum that have the crypto exhibits.