You never know how dogs will react in water. I had an English Bulldog. I was warned not to let her near water because bulldogs can't swim. I took her to a huge dog park in Prospect Park, Brooklyn. There was a large lake in one corner. She looked over at the water, started running, and leaped in. She then swam completely across the lake. From that moment on, I let her swim whenever I could. She loved it. No other dog I have owned could swim.