The Operator and one additional Occupant aboard Vessel 1 (which was tied to the dock) were sitting on the aft bench of Vessel 1 when the Occupant smelled what they thought was an electrical fire.  The Occupant looked over to the starboard side of Vessel 1 and saw smoke coming from the starboard side of Vessel 1.  The Occupant then went into the cabin and saw smoke coming from the electrical panel.  The Operator then started spraying the panel with a fire extinguisher; after expending three fire extinguishers, another boater docked in the area nearby arrived on scene and expended an additional extinguisher.  All of these efforts were unsuccessful and at this point both persons aboard Vessel 1 let the vessel.  The local fire department arrived a short time later and was able to put out the flames.  Vessel 2 , Vessel 3, and Vessel 4 which were tied to adjoining docks also suffered some fire damage due to proximity as well.
Catawba Island