Eventually found the cache after second visit to this area on the South coast of England. The first visit was a disaster and had to be abandoned due to lack of time and trying to get use to using Tom Tom’s GPS. The second visit was much more rewarding and I went straight to the cache.
I took the Round the world in 80 caches TB to move to a safer location as this one was a bit exposed & the cache container had a large split on the bottom. Will relocate soon! TFTC.