RedactedNarrative: Operator of vessel #2 departed the beach area towards an island.  When he was about 2000 ft from the island he turned sharp to the left in a u-turn and back in the opposite direction and was struck immediately after. He sustained injury. Operator of vessel #1 was heading west when he struck vessel #2 on the port side.  Causes of accidents were reckless operation of a vessel without due regard for the safety of others, causing  injury, failure to follow rules of the road, operate pwc crossing/passing to close to another vessel/negligent operation of a pwc jumping the wake of another vessel.