Yes, Circle Yoga has the Budding Yogis Summer Camp. They have half-day camp for kids ages 4-7 and full-day camp for older kids, ages 6-12. My daughter loves it and we'll be going again this summer. It's fun, creative, and low-key, yet a perfect outlet for energy. Check it out at
http://circleyoga.com/budding-yogis/summer-camp/.