Assuming you are doing this cache as part of the walk (of which it is part) the route to the cache is obvious. If you are doing this as a one-off stand-alone puzzle you shold be able to park right reasonably close to the cache
This cache is NOT at the published co-ordinates. Don't go there; you'll get run over. Instead solve the following puzzle

The cache is at
North: ROT13 (TFTC-FTF) (FTF-SL) FTF (ROT13+FTF) (TFTC+SL) (ROT13+TFTC)
East: (SL-SL) (ROT13-FTF-SL) (FTF+SL) SL TFTC (SL+SL) (TFTC-SL-SL)
count the characters in the acronyms of the puzzle..... "ROT13" = 5....
If you are doing this cache as part of the series the next cache is a puzzle. If you've solved the puzzle your route is obvious