The Navy UDT (Underwater Demolition Team) were trained to blow up things under or near the water. WHAT FUN!
If my coordinates are a little off, did you check the 3 day forcast at (SWPC.NOAA.gov) for GPS accuracy, like a Navy Seal aka UDT before your mission? Then don't cry like a, ah, you know.
Please be mindfull of his SCUBA gear! Take you time logging and replacement of the gear. We wouldn't want an untimely explosion...