[Foggycreek]

You can certainly freeze water bottles and put them into the cage. Some people wrap them into a towel--this helps with condensation.

You can have a fan going as well, just don't let it blow directly on the pig.

I would take out any plastic pigloos--they can be like little ovens!

Oh, I forgot to mention that you can freeze melon rinds and give them as cool treats!