Sandy Neck is a barrier beach located in Barnstable, Massachusetts, on Cape Cod. It stretches approximately 6 miles along the coastline and is part of the Sandy Neck Beach Park, which offers a variety of recreational activities such as hiking, fishing, and birdwatching. The area is known for its diverse ecosystems, including dunes, salt marshes, and tidal flats. The beach is also home to the historic Sandy Neck Lighthouse, built in 1826, which guides boats safely through the nearby waters. Sandy Neck is a popular destination for both locals and tourists, providing opportunities for swimming, kayaking, and enjoying the natural beauty of the Cape Cod region.