He swam 44 miles in 16 h? I'm skeptical. The ironman Triathalon swimmers go 2.4 miles in about 31 minutes, which would be about 10 h to get ashore if they could keep the pace. Long distance swimmers - like to Catalina Island - spend about 12h to go 20 miles. A typical 10km time is 2h45m, which would extrapolate to about 20h if you could keep the pace. I'm skeptical.