RedactedNarrative: On April 6, 2020, at approximately 3:30 PM, Operator, was operating his 14 foot, tiller steer vessel at Cheniere Lake. Operator  was avoiding a log that was in his direction of operation. Upon going around the log, he accelerated his motor. After operating approximately 8 feet from the log, he struck a submerged object. Upon striking the object, his motor became dislodged from his vessel and sank in the water. He then struck a tree, causing a small dent at the bow of the boat. He then paddled back to the bank. He was wearing a type 3 PFD. This was a single vessel incident. Operator was not wearing his cutoff lanyard due to the lanyard not being serviceable. The contributing factors related to this incident were Operator striking a submerged object, careless operation of the lake due to the amount of submerged objects, and excessive speed given the area of the lake that he was operating in.