The Sandbox Extra Curricular Offerings The Sandbox offers families and children the opportunity to participate in many additional activities. There is a charge for these services. Information and registration forms are available upon request from the office. Dance - Heidi Wilson - Wednesdays Ballet and Tap (30-45 minute sessions) $28/month Stretch-n-Grow Stretch-n-Grow is designed to promote exercise and wellness for preschool children. Stretch-n-Grow participants will engage in weekly sessions, which include exercise, activities and discussions on health and related issues such as nutrition, hygiene, and safety. Children have a lot of fun while they learn to enjoy exercise and build good habits. Children receive a 30 minute session.