yeah he has like 100 ft of line or something to that effect lol. there was once when he was younger that he kinda was getting pulled to the side a bit so we just pulled him in a tiny bit and the water went right over his head and we thought he was going to freak out but he didn't care lol then he kept sticking his head underwater on purpose lol. He has fully webbed feet too so that REALLY helps him lol.
Thats why I want to get him into something like those dock dog competitions some day I think he would really enjoy that
his two favourite things swimming and fetch lol.