On Sunday, Aug. 2, South Dakota's oldest band, the Lennox Municipal Band, will perform at the Prairie Arboretum Amphitheater beginning at 7 p.m. The concert will follow a series of other activities that begin at 4 p.m. at the arboretum: A treasure hunt and bouncy house for kids, family photography by a professional photographer and a picnic meal starting at 5 p.m.