RedactedNarrative: On 07-21-18 at 1453hrs, a injury watercraft accident reported at Davis Camp south beach BHC AZ. Driver on red rented PWC (vessel 1) headed north on river. Driver on yellow rented PWC (vessel 2) headed south on river. Driver of red pwc (vessel 1) turned in front of driver of yellow PWC (vessel 2).  Both operators should have turned to starboard with ample time to avoid the collision.  Additionally V2 should have been travelling downstream on the opposite side or middle of the river channel to ensure port to port passage as required by state and federal navigation rules. Both operators were ejected, and sustained injury.