RedactedNarrative: On 06/16/2018 at approximately 1300 hours, male Operator of vessel #1 stopped vessel #1 and voluntarily jumped from the vessel "for a Swim" in the North Basin of Lake Havasu, near the Windsor State Park Personal Watercraft Launch Ramp. The weather conditions on 06/16/2018 were high winds and rough waves. As vessel #1 drifted, he began to struggle. The Subject then subsequently descended under water and never resurfaced. Occupants on vessel #1 attempted to throw victim a type II Personal Floatation Device, with negative results. Victim descended under water and never resurfaced. The environmental conditions were windy.  On 06/19/2018, subject was discovered floating in same area. subject was then recovered in same area.