Use your answer to work out the following co-ordinate to give you the postion of the cache:
N51 (1st number + 6th number)(2nd number x 10th number + the last number).(the 17th number)(11th number + 14th number + the last two numbers)(10th number x 14th number + the 4th number + the 7th number)
W003 0(8th number - 9th number).(the 5th number)(2nd number + the 3rd number)(17th + 18th number)
The cache is a Bison-type container just outside Abergavenny with good views of Blorenge and the Sugar Loaf. Puzzle rating 2.5, cache rating 2. Happy caching.
You can validate your puzzle solution with certitude.