I don't have any tips, really....but I wanted to say that Sully swims too...in hotel pools when we can get away with it, haha! He doesn't like it much - I'm sure he'd do much better with a life jacket on
But anyway, my husband and I thought it was funny to take pictures of him in the pool with us @ a hotel in N.C....
And I'm a professional swim teacher (6 years experience, certified), so found it quite amusing to give my dog one of my "swimming lessons" Haha!