The coordinates given for this cache are the suggested parking
location and also the location of the first clue. (Letter A)
To solve this multi cache, you need to visit the locations
listed as additional waypoints below, making a note of the number
in each place (hint given with info on each additional waypoint).
Then, substitute letters A-I in the sudoku grid below with these
numbers and solve the puzzle
For a brief explanation on Sudoku Puzzle's, go to
the wikipedia
article
Finishing Post!
Once you've finished the puzzle, the final cache (Finishing
Post) can be located at : N51 21.UVW E001 23.XYZ. Substitute U, V,
W, X, Y and Z in the coordinates with the numbers in the completed
sudoku puzzle