The cache is not at the published coordinates.  Solve the puzzle for the actual location and hint.

SideTracked - Westferry (DLR)

Westferry is a station on the Docklands Light Railway (DLR), at the junction of Limehouse Causeway and Westferry Road in Limehouse in London Docklands, England. The station is located in Travelcard Zone 2. To the west is Limehouse station, whilst to the east the DLR splits, with one branch going to Poplar station and the other to West India Quay station.

About SideTracked Caches

This cache belongs to the SideTracked series. It is not designed to take you to a magical place with a breath taking view. It's a distraction for the weary traveller, but anyone else can go and find it too. More Information can be found at the SideTracked Website