Yoga on the Pier  Beginning Wednesday, May 2 - 27, July 11 - Aug. 15, Aug. 29 Race Street Pier - N. Christopher Columbus Blvd. and Race Street, Philadelphia, PA 19106 Organized by the Delaware River Waterfront Corporation and presented by Aetna Jennifer Schelter will be leading meditation and gentle yoga for all ages. Her teachings and classes will include: positive mindset - creative visualization - deep  breathing - focus - longevity - strength - gratitude circle - deep relaxation   Holidays,…