RedactedNarrative: Vessel 1 was operating from Kelley's Island to the Huron Boat Ramp.  Vessel 1 was approximately near the entrance of the Mosley Channel that enters Sandusky Bay. At that time, vessel 1's hull began to fail. Vessel 1 sank to the bottom but both parties on board were able to safely exit the vessel onto another assisting vessel.  After vessel 1 was towed, it was concluded that the vessel suffered from delamination