The cache is not in the water and does not require getting wet.
There are 7 Regulations posted on the top sign you will have to number them yourself and use them to solve for:
N 032° 47.ABC' W 117° 02.DEF
A = (B)-(C)-(GLASS)
B = LEASHED
C = WADING
D = SWIMMING
E = (SMOKING)-(GLASS)-(ALCOHOL)
F = LITTERING
Please replace exactly as found head first.
Checksum North = 12
Checksum South = 9