Safe, joyful classes on the peaceful Waconda Bay Dedicated to exploring the restorative qualities of Purna Yoga â„¢ yoga classes on land and water. offerings include Monthly Retreats featuring active asana and restorative yoga classes, Heartfull meditationâ„¢ and/or SUP (Stand Up Paddleboard) Yoga classes. Yoga therapy by appointment. Purna Yogaâ„¢ is the complete yoga that includes alignment-based asana, heart-centered meditation and healthy life-style choices, including nutrition.