Osterville Bay is a picturesque coastal area located in Barnstable, Massachusetts, on Cape Cod. It is known for its calm waters, making it a popular spot for boating, fishing, and other water activities. The bay is surrounded by beautiful homes and lush landscapes, contributing to its charming atmosphere. The bay is part of the larger Nantucket Sound and is situated near the Osterville village, which offers various amenities, including shops and restaurants. Osterville Bay is also home to several marinas, providing access for both local and visiting boaters to enjoy the scenic beauty of the region.