Doane Rock is located only minutes away from the Town Crier Motel by car or bike. Doane Rock is a glacial erratic on the grounds of the Cape Cod National Seashore. It is the largest exposed boulder on Cape Cod. Named after one of Eastham’s original settlers, John Doane. It stands 18 feet high and extends below the ground an estimated 12 feet. Parking is available. A great activity to enjoy with the kids, and there is also a trail you can walk leading to Coast Guard Beach, which goes over the marshlands, starting at Doane Rock.