Art drop-in groups at four locations in Columbia County, every week through May 26. Free to all. Materials are provided. Tuesday at Chatham Public Library, 12:30 p.m. to 2 p.m.; Wednesday at Germantown Library, 12 p.m. to 2 p.m.; Thursday at Apogee Center in Hudson, 2:30 p.m. to 4 p.m.; and, Thursday at the Church of St. John in the Wilderness in Copake Falls, 6:30 p.m. to 8 p.m. Information at www.apogeecenter.org.