Not to be confused with Big Haynes Creek Recreation Area, Big Haynes Creek Nature Center is part of the Georgia International Horse Park, home to the equestrian events at the 1996 Olympics. These 173 acres were designated as a nature preserve and opened in 2007. The nature center features hiking, mountain biking, and equestrian trails, as well as a boat launch for canoes and kayaks. Some trails have bikes and horses separated, others are combined. Some of the trails are very wide and flat, while some are very narrow and moderately steep. Note: some of the biking and hiking trails are along granite outcrops and may be very slippery when wet.

Address: 855 Costley Mill Rd NE, Conyers, GA 30013
Cost of admission: None
Governance: Georgia International Horse Park
Acres: 173
Approximate miles of trails: Around 5 miles of trails in the nature center; around 20 miles total trails in the horse park
Hours: Sunrise to sunset
Miles from downtown Atlanta: 27
Parking and trailhead: Signs direct you to the nature center parking lot, which is across Costley Mill Rd from Gate D of the Georgia International Horse Park
Trail surface: Natural
Blazes/markings: Trails are blazed with paint on trees
Dogs allowed: Yes
Fishing allowed: No
Guidebook mentions: None