The South County Community Calendar includes activities such as chair yoga at Concord Trinity United Methodist Church, 5275 S. Lindbergh Blvd. SAJE Senior Ministry is hosting ZumbaGold at 11:30 a.m. at the church. The Affton Community Center is hosting open pickleball from noon to 1:30 p.m., with admission being $3 per person or free for members of Renew Active and SilverSneakers. The Cards and Games Club will be held at the Oak Bend Branch of the St. Louis County Library, where players will learn about creating personalized greeting cards. The Jefferson County Library is inviting participants to join the “Book It: Foam Run” at Arnold City Park, 2400 Bradley Beach Rd. Celebrate Earth and Arbor days with a celebration and recycling drive outside Sunset Hills Community Center. Volunteers will be needed to build bunk beds and transform bunk beds into homes. The River Rock Church of Lemay will host a Better Restay program for families in need of children.