Daingerfield Island is one of Alexandria, VA’s awesome parks. Located right on the Potomac River, it’s picturesque waterfront views are perfect for an anniversary session. At the junction of Four Mile Run and the Potomac, Daingerfield Island hosts sailing, fishing, and field sports, along with a popular restaurant. The 106-acre site is no longer an island, and is easily accessible from the George Washington Memorial Parkway or the Mount Vernon Bike Trail.