I would recommend that you take advantage of the opportunity to stretch the legs and complete the final leg to the cache on foot, a walk of just less than two miles all in.
The co-ordinates to an ideal place to park the car are hidden in the SoDuko puzzle below.
Car Park Location
N = A5° BC. 0DE
W = 001° FG. 0HI
Once parked up you will find the cache destination hidden in a microcache. The clue to this destination is " Tween stop valves two and four".
On finding the microcache you will have to identify two of the final coordinates by answering two very simple questions. One of these may well involve a little walk though!
The final cache destination is approx threee quarters of a mile away with the return leg back to the car park area a further one and a half miles.
Happy hunting.