The cache is not at the listed coordinates.
First you will need to watch this seasonal version of the irritating duck song (maybe several times) to calculate the coordinates of the physical cache.
The Christmas Duck Song
The cache can then be found at:
N54 0 A. B C D
W002 4 E. 0 F G
Where:
A = The number of times you hear the words 'grapes' minus 3
B = The number of days the duck visits Santa
C = The number of times you hear the word 'lemonade'
D = The number of times you hear 'Merry Christmas' / 2
E = The number of items Santa puts in the sack + 2
F = The number of reindeer pulling the sleigh
G = The number of flags on the castle
'Got any grapes?'
Merry Christmas