I know two guys who ditched.
One was in an Islander, which ditched 30 miles off Barbados after an engine failure at night. Very hard, of course, to judge where the surface is. Aircraft went down almost immediately. He had 9 pax on board. All were successfully fished out alive, but one unfortunately died of hypothermia on the way to hospital.
The other was in a Turbo Commander off ANU. Went down inside 2 minutes.