A trail of 9 caches plus a bonus placed for the 2018 South Wales Event at Mitchel Troy. You will need to take note of something at each cache to enable you to locate the bonus. You should do them in order to avoid back tracking.
The walk involves walking through grassy fields and paths so appropriate footwear is recommended and there are also quite a few styles and gates to climb over.
To find this bonus you need to use what you've found at each cache on the trail and use the formulae below to gain your coordinates:
N E(B-C) D(C+J).(A-J)G(F-C)
W00(F/J) CJ.(B+C)HJ
Once you have found the cache follow the grassy path keeping the stream on your right, passing through the farm on the footpath continuing along the track back to Mitchel Troy.