The Tube Challenge

Nope - it is a run down a backstreet or two.

The toughest is North harrow to West Harrow when you only have 5 minutes to do it in. Made it with a forward dive to make sure the doors couldn;t close...

What is the best way to get a ticket to do the whole tube challenge. A zones 1-6 doesn't sort out the Bakerloo or A,B,C sections of the Met. Can't see the time being hit if queueing for a ticket is involved.