We have a pretty sweet setup in our backyard for summer. We have a little pool on our deck, and then over the whole deck we have a shade structure that keeps the sun off of the deckboards and the pool. It's still plenty warm and there's no sun exposure. The girls love to go out there and play, sometimes setting up their little slide to slide into the pool and other times bringing out some of their toys to play with in the water.
One time Zelda decided it would be a good idea to pour water on Ellie:
And then to fling water at her:
And then accidentally flung a bunch on herself: