I do love a good set of stepping stones, and this is a set that I have visited a great many times during my life; especially on family holidays when growing up. So this is a multi dedicated to this lovely area at High Down Ford, at the foot of Brat Tor.
The headline co-ordinates take you to the stepping stones, and the waypoint takes you to the bridge. You will need information from both places to discover the final cache.
To find the cache:
A = How many stepping stones are there?
B = How many stone steps are on the western side of the bridge?
C = How many hand rails are on one side of the bridge?
D = How many upright supports are on one side of the bridge?
E = How many metal brackets are on the top of the walkway of the bridge, divided by 2?
F = How many boulders are used as steps on the eastern side of the bridge?
N50 39.(A-B-D) (D-C+F) (C+F) W004 05. (D-E) D E