Mason Neck is a peninsula located in Virginia, situated along the Potomac River. It is part of the Mason Neck National Wildlife Refuge, which was established to protect various wildlife species and their habitats. The area is known for its diverse ecosystems, including wetlands, forests, and open water, making it a vital area for birdwatching and outdoor activities. The peninsula is also home to the National Audubon Society and the George Washington Memorial Parkway. Visitors can enjoy hiking, biking, and observing wildlife in their natural habitats. Mason Neck serves as an important conservation area while providing recreational opportunities for the public.