RedactedNarrative: ON 03-17-20 AT APPROXIMATELY 2135 HOURS, DISPATCH RECEIVED A CALL FROM PWC RIDER, OPERATOR 1 IN REFERENCE TO A BOATER ASSIST. OPERATOR 1 STATED THAT AROUND 1730 HOURS, HE WAS RIDING HIS 2017 YAMAHA GP1800 AND CRASHED. HE SAID THAT HE WAS GOING FAST AND ALL OF THE SUDDEN WAS THROWN OFF THE PWC. HE SAID THAT HE WAS TRYING TO HOLD ON TO HIS PWC FOR AS LONG AS HE COULD BEFORE IT SANK. OPERATOR 1 THE CRASH HAPPENED ON CALIFORNIA SIDE IN WHIPPLE BAY. HE SAID BY THE TIME HE LET GO OF THE PWC AND IT SANK, HE HAD DRIFTED TOWARDS THE ARIZONA SIDE NEAR PILOT ROCK. OPERATOR 1 SAID THAT AFTER IT SANK, HE THEN SWAM TO PILOT ROCK (ARIZONA SHORELINE) WHERE HE WAS ABLE TO FLAG DOWN ANOTHER BOATER WHO TOOK HIM BACK TO THE LAUNCH RAMP.