That is precious!! Skinny dippin' an all!
We have a pool in the backyard but my girls have all fallen in accidentally at different times in their lives so they won't go near it now.
Your videos are precious!! Have you ever put little things in the bottom for them to dive to get? they will learn to hold their breath that way. We had a cocker spaniel that loved the water and she would dive down on the steps to pick up toys that didn't float. Floating toys are nice too but she was so proud to retrieve the ones under the water. My yorkies don't like to get their faces wet