Lake Fairfax Park is located at 1400 Lake Fairfax Drive in Reston. Its 476 acres include a 18-acre lake, The Water Mine, an outdoor swimming pool enveloped by a lazy river; pedal boat rental, fishing, a carousel, campgrounds, trails, playground and picnic areas. Nominal fees are charged for boat rentals, The Water Mine, carousel and camping. Swimming is prohibited in the lake.

Allan-Herschell Company made the carousel structure and operating mechanism at Lake Fairfax Park, its 20 horses made by Thiel Manufacturing Company of Leavenworth, Kansas. All of them are cast aluminum and are arranged in two rows.