I buy a new kiddie pool every year. I got a really small one this time to make it easier to dump and clean. So far only one bully goes in at a time. Mr. Wilson is camera shy so it's hard to film him splashing. He will oh so carefully step in the pool one foot gently in at a time, take a drink and stand there for a while. BabyGirl usually steps in and sits. Not a lot of exuberance but I think they enjoy it in their own bully way.
Daisy my little brown Tabby watches from the confines of her kitty enclosure.
Wilson & BabyGirl
I have one but Brodie hasn't gotten in it yet. He walks up to it puts his front two paws up and just looks at it then walks away. LOL. He hasn't braved it yet.