Beat the London Tube journey times and keep fit

I thought that the London Tube map of the central zone published to indicate walking times between stations is brilliant.  I lived in London more than 20 years ago and would often walk to my final destination in central London rather then change tube lines for one or two stops. You can’t tell from the official tube map how far apart the stations in the central zone are located. The map was evidently put together by a group postgrad students in one week. Well done!