Cache is not at the posted coordinates.
To find the cache you must rig my ship.
3 = Spanker
5 = Top Sail
5 = Jib
14 = Top Gallant
6 = Stay Sail
7 = Fore Sail
9 = Main Sail
9 = Fore Royal
6 = Royal
4 = Fore Top Sail
36 = Flying Jib
6 = Fore Top Gallant
You can validate your puzzle solution with certitude.