The cache is not at the published coordinates.
In order to get the coordinates simply decode the puzzle below:
N53 
.
W002 40.
Dory 1
Nemo 2
Marlin 3
Bloat 4
Gill 5
Bruce 6
Anchor 7
Crush 8
Mr Ray 9
Gurgle 0
You can check your answers for this puzzle on Geochecker.com.