Mensa is such a bathing beauty! Hubby picked up a sandbox w/ a lid at Toys R Us when they were clearing them at the end of July. We had only had Java for about a month. She LOVED it, kept trying to empty it out with her paws, biting the water, or just sitting in the water and hanging out. We keep the pool in an area that gets shade during the hottest part of the day since the sun can be so strong in the summer. Yes, I know - a very SRD!
Java also loves the sprinkler - we have the old-fashioned kind that spreads the water horizonally - keeps trying to bite the water, shakes her head, bounces around and then comes back for more. That will keep her occupied for an hour, easy. You wouldn't think that this is the same dog that is horrified when a drop of rain water hits her!