Castlehaven, Maryland, is a small, unincorporated community located in St. Mary's County. It is situated near the shores of the Chesapeake Bay, offering residents and visitors access to various water-related activities. The area is primarily residential, characterized by a mix of single-family homes and waterfront properties. The community is part of a region known for its natural beauty and outdoor recreational opportunities. Nearby attractions include Point Lookout State Park, which features hiking trails, picnic areas, and historical sites. Castlehaven's proximity to Leonardtown, the county seat, provides additional amenities and services for its residents.