On the first stage you'll find a plate with the name of the
path.
Take the following letters from the name and use the position in
the alphabet to calculate the coordinates of the final:
5th letter = A
6th letter = B
7th letter = C
8th letter = D
9th letter = E
Final: N 49° 52.((A + E) x D + A)
E 008° 19.((B + C) x D + A)
You can also use these coordinates to start: W 49° 52.476, E
0008° 19.611
Since the plate with the name disappears from time to time the
name is also written on the back of the warning plate nearby.
For a german cache description see: OC6AA3
(opencaching.de)