Banstead station, is the second station of the branch line starting in Sutton. The related web page contains some excellent information and pictures about the line and the stations and is well worth a visit
***UPDATE FEB 2012***
Due to the old location falling down, the cache has been moved further up the path towards the station so shortest route is from station parking.
You are lookingfor a 35mm container containing logbook only, so please bring your own pen/pencil