Kit's Coty is the name of the remains of a Neolithic burial chamber. It consists of three stones supporting a horizontal capstone with a total height of approx. 3m.
To obtain the Cache co-ordinates you will have to find the plaque next to the tomb;
Find the two digit number representing how many metres the mound was.
Assign each digit a letter A, B. (for example; if the number was 16, 'A' would be 1 and 'B' would be 6).
Crunch some very simple numbers;
X = B / 2
You will find the cache on the footpath at N51° 19.XXA E000° 30.XXA