RedactedNarrative: Operator was operating a 23.5 ft Rinker Captiva on Dale Hollow Lake near the State Park Marina when the vessel caught fire. According to Operator he had just fueled up the boat @ the Dale Hollow State Park Marina. They traveled south on the lake about 2 tenths mile when the boat seemed to lose power. He stopped the vessel and opened the engine compartment. Upon on opening the engine compartment smoke came out and was also coming out of the bilge. He attempted to get a fire extinguisher out of the storage compartment but it was full of flames. The group was unable to get PFDs, they had to grab something that would float and jump into the water. The boat burnt to the water line and was a total loss. The group was rescued by a good samaritain and took to shore. No one reported being injuried.