Rent bikes in North Falmouth and ride to Woods Hole. The trail is scenic and flat, perfect for a brisk fall day.
Head down to Woods Hole and check out the beaches, Nobska Point Lighthouse, Science Aquarium or Oceanographic Institute. Or just take a nice fall walk and enjoy the scenery.
If you have a car, check out the Cape Cod Winery and enjoy a glass of locally sourced wine.