The coordinates above to the SCWC7 Sudoku #2 are bogus. If you try to use them they will take you into a bit of water, a place you could swim to but no car can get here. There is no cache there.
You will have to solve the Sudoku puzzle to actually find the correct coordinates.
The cache coordinates are neatly hidden in the solution to the SCWC7 Sudoku #2 puzzle. Use the squares with letters and numbers to complete the coordinates to the final cache location.

North A0° EG.KIJ
West C0H° BF.0D0
After you have plugged the correct numbers in to your search device then you are ready to go to the GZ and search out the cache.
Please replace cache as found, BYOP, and use stealth whenever necessary.
Thanks and Enjoy... 