Every fall and spring, thousands of folks flutter over to this desert sanctuary to join the butterflies in an orgy of color and movement. Inside the pavilion, surrounded by native foliage and blooming wildflowers, the humans observe the butterflies in all their glory. Those really in the know can tell the Sleepy Orange from the Painted Lady, and the Southern Dogface from the Common Checkered Skipper. Adults and small children seem to be equally enchanted by the moment. Last spring, we watched a hyperkinetic 9-year-old instantly slow to the speed of a chanting Tibetan monk as the butterflies surrounded and landed on him. A magical place. On October 1, the garden's Mariposa Monarca exhibit opens -- you can dance with the butterflies 'til November 6.