Also, if you can't do the ice thing....just lots of water, preferably in a shaded area, works well. The dehydration issue is probably more important then the temparture of the water. And, in this current heat...not sure how long ice in the water really works.

I guess if you froze half a bucket of water, then topped it with water, it would last awhile. But your smaller animals would still have a problem getting in there, I think.