Rancho Los Cerritos is back with its popular free summer concert series, with music on the fourth Sunday of the month during July and August. The August 25th concert features The Band of the California Battalion. The site opens at 5 p.m. for pre-concert picnicking. Concerts run from 5:30 p.m. to 7 p.m. Guests can bring blankets or lawn chairs. Pets are not allowed.