When I was a student at Cranfield, we could always tell when we were near Cranfield on the M1, there was fog or other low lying clouds there. There was a story that Cranfield had been used once as a divert field when as I recall Heathrow was closed, the plane landed and stopped ok, to get airborne again the seats etc had to be removed due to the short runway.
Cranfield is also quite built up as a university...