We took the little blue swimming pool that was Charlie's welping 'box' & let the pups use it for a real swimming pool in our back yard - Skylar & Joy were hooked immediately! Even though it was too small for 'real' swimming, Skylar would take her entire face & body and manage to get it all underwater in stages & then jump out, shaking herself everywhere as if saying, "I'm the most refreshed dog in the world!" LOL!