This is a simple 1 stage multi leading to a nano.
The cache is not at the listed coordinates, they will however lead you to a 'powerful' door displaying two numbers that will help you locate the actual cache.
The two numbers should be 5 digit (ABBCC) and 10 digit (DBDD CEF GEF).
Use the following formula to calculate the coordinates of the actual cache.
N 53° 47.(E)(A+C)(B-A) W 1° 33.(E-F)(F)(G+C)
The Power Beneath Us (#1 & #2) and the start location are all connected to the Electricity Network via tunnels beneath the street of Leeds.