How very lucky your kitties are, Robert! Some great ideas there.

I will add a couple: 1) Put a few ice cubes in their water. 2) use a small fan and set it up blowing over their fave relaxation area.

Currently it is 31 degrees C outside, about 24 inside, and our cat is lying on the windowshelf enjoying the air flow from the small fan I set up for her.

Taffys' wet food does not get dried out because we feed her fives times daily and do not leave the food down between feedings.