Some people will tell you Yorkies don't swim. Well, they do! All of mine swim. You have to introduce them when they are young. We do it very slowly. We start with a pool with just a little water in it - maybe an inch. Then let them play and have fun. Gradually over a week or two, we add more water until they are not afraid. The swimming will come naturally - we did not have to show them. Just let them figure it out slowly and now they JUMP into the water.