Aldersgate United Methodist Church, 15 Wesley Lane, Rockland, will host a free community picnic on Sunday, September 15, from 3 to 6 p.m. Hamburgers, hot dogs, potato salad, chips and soft drinks will be provided, along with some surprise goodies. A hat will be passed for donations to cover expenses and to support Aldersgate’s mission. Steelin’ Thunder, a steel-drum band from Rockland under the direction of Mike Miller, will perform for dancing and listening. Concertgoers are encouraged to bring lawn chairs and blankets to the rain-or-shine event.