RedactedNarrative: Unit 1 was coming across the Charleston Harbor on 10/21/2014 at approximately 22:30 traveling in the direction from Crab bank towards Ashley River. Operator reported to Officer he went around a Container Ship. Operator reported that he thought he was far enough up the river to start making his pass of Castle Pinckney when the boat hit the beach. R/O found at the scene that the boat went across the beach approximately 30 feet and stopped in the salt marsh. Two Passengers were injured the victims were sitting in the bow of the boat which resulted in the injuries due to hitting the interior of the boat.