Sedona
If you have older kids 10-16 and don't want to spend the money to visit Slide Rock State Park, park at Midgely Bridge and hike down to the river. The hike on the red dirt with beautiful views is fun enough, but once you get to the river and slip on some river shoes, that's when the real fun begins. Not very crowded. Great place to sun, swim, and slide in the river on your rear.
From journal Arizona Adventure