RedactedNarrative: Vessel was coming off plane into Capri Pass at night. Operator saw the unmarked channel piling at last second and was unable to avoid it. Vessel struck piling at approximately 25mph on the starboard side cracking the hull. Operator attempted to make it back to the dock but was unable due to water filling the hull. Operator beached vessel on sandbar near green channel marker 13 and all occupants were taken to a dock by Seatow. No injuries were reported.