Cape Cod Beaches, Cape Cod Blog, Cape Cod National Seashore, Cape Cod Photography Large Marker Buoy Washed Up On Shore On Cape Cod Bay January 8, 2017 Mel Leave a comment Post Views: 1,983 There was a very large marker buoy that washed up on Boat Meadow Beach this week. At first I thought it was just a buoy but then I saw the light on top of it. It was quite large.. about 3-4′ high. I wonder where it was from?