Radford Park Puzzle Peramble #1 - Samurai Sudoku
The cache is not at the above co-ordinates, solve the puzzle to find the location!

Once you've completed the puzzle, you'll need to solve the co-ordinates:
N 51° 04.ABC
W 000° 47.DEF
Although it may look a little daunting, in a Samurai Sudoku you simply treat the puzzle as five separate 9x9 Sudoku puzzles that just happen to share their corner squares. Although more time consuming, you'll find the shared corners will actually make the individual puzzles easier! This one is fairly easy, even for a Sudoku beginner.
If you have never attempted a Sudoku before, the following link should help - Paul's Pages
Please make sure to leave all caches well hidden. Good luck!
Geochecker