I have a different opinion on this. My Cyclura lewisi hybrids which live in outdoor enclosures with no roof, will sit in the pouring rain all day long getting soaked. They prefer this instead of staying in their hide burrows. They live naturally on Caribbean islands that get soaked on a regular basis and get hit regularly by tropical storms and hurricanes. I believe that they like getting a soaking and since they are kept out of their natural environments, they get that soaking one way or another. In this case; a bath tub or water bowl.