tubechallenge.com

Yet another silly challenge idea: Visit a sequence of stations that, between them, contain all the letters of the alphabet in their names.

I've come up with two plausible-looking routes, including one with only two changes.

An oh-what-a-giveaway hint to get you started: you probably want to go to Belsize Park at some point.

Interesting idea....after 10 mins I agree it only needs two changes, and would be too short to make it into a competition.

Actually there *may* be a faster route I think...would mean a run.

Both suggestions start at Belsize park; one ends up in Zone 1, the other out of town.