Don’t miss this opportunity to unwind in the crisp fall air while enjoying great tunes during Sunday Serenade. This delightful series of free morning concerts is held at Cabin John Regional Park’s Amphitheater in Bethesda, MD. On October 3, relax and enjoy live music from Marsha & the Positrons. Bring a blanket, lawn chair, and some snacks to make it a perfect morning picnic with family or friends. Local vendor Ella’s Bake Shop will also be on-site, offering tasty breakfast treats. Free.