Both boats were tied to the dock at the time of the fire.
Consuelo Escobar, who was in the second boat with her boyfriend, said her boyfriend used a fire extinguisher to battle the flames in the first boat, but the wind caused the flames to spread to their boat.
"The fire kept coming and coming, and the wind was moving it a lot," Escobar said.
Her boyfriend untied his boat let it drift into the water.
"It was completely full of flames in the middle of the water," the witness said. "There was a thick, black smoke coming from both boats."
Escobar said her boyfriend was taken to the hospital with burns around his neck and face but said he should be OK.
The fire started shortly before 11:30 a.m. The fire in the first boat was put out quickly. The stern of the boat was still intact, but the front was charred and burned through.
Firefighters were still chasing flames in Escobar's boat at 1 p.m.