Vessel One left the dock and was underway with an operator and two passengers(1)(2). They headed up river to go swimming. Vessel one ran aground on soft bottom. The owner/operator decided to just wait for the tide to come in to lift the vessel free. As the tide rose the vessel became stuck to the bottom and the tide rose over the gunwale. The water slowly flooded and swamped the vessel. The owner/operator and passengers(1)and(2) received a ride back to shore.
Saco