GEOCACHE IS NOT AT THE POSTED COORDINATES. THE POSTED COORDINATES ARE FOR THE ACCESS ROAD TO SGL 98 WHERE THE FINAL IS HIDDEN.
This is the Final for the Battleship Series. To Solve for the final coordinates you must visit cache locations and essentially play battleship as you go along. The Game Board is as follows
It corresponds to the Geo-Art hidden nearby. You are looking for 3 ships within the game board. The 3 ships are the BATTLESHIP (4 HITS), the SUBMARINE (3 HITS), and the DESTROYER (3 HITS). Each ship hit will have information on the outside of the tube to lead you to the final. If the end of the tube is white, you have missed. If the end of the tube is red, you have a hit! Look for the information about one of the letters below on the outside of the tube.
The final cache can be found at N 40 QR.STU W 078 VW.XYZ