Search the indicated locations at the listed coordinates on the world map 
to find all 13 hidden shipwrecks and get the "Seven Deadly Seas" trophy. 
Note: Shipwrecks become available after completing Sequence 6: Memory 1.

1. San Ignacio: 378, 769 coordinates
2. Petite Caverne: 901, 264 coordinates
3. Jiguey: 564, 539 coordinates
4. Atocha: 632, 661 coordinates
5. Black Trench: 221, 449 coordinates
6. San Juan: 480, 486 coordinates
7. Devil's Eyes Cave: 487, 356 coordinates
8. Anotto Bay: 622, 276 coordinates
9. Ambergris Key: 55, 177 coordinates
10. The Blue Hole: 470, 170 coordinates
11. Kabah Ruins: 768, 144 coordinates
12. La Concepcion Shipwreck: 180, 296 coordinates
13. Antocha: 629, 661 coordinates