Transliterate the runes then work out the final location
The cache is located at N50 AB.CDE W000 FG.HJK
Update on 8th August 2015: I have retaken the co-ordinates and added 0.002 to the Northings for a hopefully more accurate location. A few people have mentioned it being on the wrong side of the path, so I think I should mention that I found it (or more accurately Orange Owl found it) stuck into the ground on the wrong side not long after it was placed so it may have been the other side when some cachers found it...
Happy Hunting!