A bit late to this thread, but Grace loves her paddling pool - she had an 80cm first, but this summer has been upgraded to a 120cm pool. On very hot days, I put all her plastic toys in the pool and she spends her time getting them all out - then I put them back in, and then she goes and gets them all out again - her tail doesn't stop wagging the whole time! If I don't put the toys in the pool she just stands there looking at the pool wagging her tail which is my cue to put the toys in for her.