Parking is possible (just) on the road near Ifield and also near cache 12. However the best spot is on the road to Nash Street in the vicinity of cache 1. The walk can be started at any point, but should be completed in a clockwise direction for a number of reasons, not least that the multis work that way.
At the coordinates above there used to be a Post Box. However this was removed in Feb 2019, and therefore this new formula. You may remember the footpath number at cache #1, if not you will need to walk back and remind yourself. Let the numbers of the footpath be A and B.
The cache can be found at:- N51 23.(B+2) (A-1) A E000 21. (B-1) (B+1) B