Missed the bus? The route that runs only four times year
2 April 2011 Last updated at 09:34 BST
If you miss a bus, you might not have to wait too long for the next one to come along - unless you are waiting for the bus from Milton Keynes to the village of Henlow in Bedfordshire.
The route only runs four days in the whole year and it is not the only questionable public transport service in Britain as travel expert Simon Calder has been finding out.