Layout backyard: 1 kid pool, 2 medium pools, 1 large pool, Spiral Sprinkler toy, Outdoor Trampoline, wooden swing, kids picnic table and various toys inflatables
Martha Stewart's sprinkler party towel favors via duke & duchess
How to Throw a Sprinkler Party | Molly Sims
Summer Boredom Buster: DIY Slip N Slide
Host a COOL Backyard Water Park
Coolers (or buckets) full of water balloons, Squirt bottles to fill, and a LONG sheet of vinyl sprayed down to create a slip'n'slide == Make your own water park. == maybe add one of those DIY sprinklers out of PVC piping?