Amersham to Chalfont & Latimer Tube Walk

Metropolitan Line Walk - Day 1 The Metropolitan line is not the longest line on the network but it is the one that goes the furthest away from central London. I've decided to start at the north west side of the line. Amersham to Chalfont & Latimer Amersham used to be in Zone D but this has now been renamed to Zone 9. It takes a while to get to the station and I have to change trains a few times. Only the Metropolitan line has stations in zones 7-9 so this line is likely is likely to be the most expensive part of my walking the tube project in terms of transport costs. When I leave the station I have a quick look around the town centre.
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