A stupa:
A Buddhist shrine which translates directly to heap. After "stupa", "chorten" is the most commonly encountered English term. Originally only a simple mound of mud or clay to cover relics of the Buddha (cetiya).
The basic structure of a Chorten consist of a square foundation symbolizing the earth, a dome symbolizing water, and thirteen tapering steps of enlightenment symbolizing the element of fire. These steps lead to a stylized parasol, the symbol of wind, which is topped in the ethereal sphere by the well-known ‘twin-symbol’ uniting sun and moon, which is the shimmering crown of the Chorten.
To find the cache you will need to walk along the path from the track (starting coords) to the two flint cairns at the end coords, how many stupas (S) and benches (B) are there?
Final cache is at: N 51° 36.3(S-1)B W 000° 47.(S-B-3)(S-B+1)(B+1)