It's Elementary My Dear Watson
THE CACHE IS NOT AT THE POSTED CO-ORDINATES!! YOU WILL ONLY FIND THE TRAIN STATION CAR PARK HERE.
THE CACHE IS LESS THAN A MINUTES WALK AWAY AND CAN BE REACHED WITH A WHEELCHAIR / BIKE / SCOOTER ETC.
THE FINAL CO-ORDINATES CAN BE OBTAINED BY DECODING THE TEXT BELOW
B-Li H-N N-C-N Li Be-Li Be-He-C
GOOD LUCK!!! :)