An addition to the sidetracked series.
Swanwick railway station is a railway station serving Park Gate, Locks Heath, Whiteley and Swanwick, in the borough of Fareham, in Hampshire, England. Despite the name, the station is actually in Park Gate and not Swanwick (which is one mile north of the station).
The station was specially built in 1888 for the local strawberry industry. For a short time each year, it was one of the busiest stations in the country. The station is located near a small industrial estate and between the residential areas of Locks Heath and Whiteley.
You’re looking for a small camouflaged clip-lock box hidden near the path on the approach to the station.