RedactedNarrative: V1 was traveling outbound Crystal River near Bagley's Cove just to the north of Marker 26 at approximately 30 mph. V1 struck an underwater obstruction and ejected the operator out of the PWC. Operator was uninjured and picked up by a family member in a pontoon boat. V1 suffered catastrophic hull damage and sank along shoreline on west side of Crystal River. I made contact with operator who stated he had only operated a PWC several times and had never been on Crystal River in the past.