My rescue pup never went near water on any of our hikes because her older brother never went near water. Then one day she saw another dog dive in chasing a ball. She acted like she couldn't believe it was true and was in chasing that dog so fast! I could tell when she went over her head and thought I would have to get her. She managed to turn around on her own and came back to me a bit spooked. But within minutes she turned, ran back in and swam up to the other pup and was hooked ever since. Older pup still has no interest (prefers mud puddles)
@Catherine3385