The posted co ordinates take you to a bench which has two plaques on it you will need information from the one on the left
Sum of the letters in second word equals = A
Sum of last word = B
Sum of 11th word = C
Sum of first word = D
How many letter E in first word = E
Sum of 10th word = F
Checksum of ABCDEF = 28
The cache can be found : N 50° 39. A B C
W 004° 32. D E F
Due to an admin error two numbers have been issued for this hall by mistake. To rectify the error the following name change has been implemented - The original cache is #146 - Tresmeer and this cache has changed name to #857 - Tresmeer 2. Geojaxx sends her apologies for this mistake but as a bonus there are two caches to find.