Just got back from Upminster. Thanks to Helene for letting us hitch a ride back to Ealing.
5am Amersham. 1am Upminster.
It has been a long day. Will blog about it once I recover.
But just to let you know - we did not manage to visit every single tube station. :(
We did manage around 250 stations but due to a combination of bad lucks (suspensions, delays), lack of proper planning and incompetence (in my part!) etc. some routes had to be cut off to make time for Upminster. (eg. Piccadilly Line route to Heathrow)