Ridley Creek State Park is a 2,606-acre (1,055 ha) Pennsylvania state park in Edgmont, Middletown and Upper Providence Townships, Delaware County, Pennsylvania in the United States. The park, about 5 miles (8 km) north of the county seat of Media, offers many recreational activities, such as hiking, biking, fishing, and picnicking. Ridley Creek passes through the park. Highlights include a 5-mile (8 km) paved multi-use trail, a formal garden designed by the Olmsted Brothers, and Colonial Pennsylvania Plantation, which recreates daily life on a pre-Revolutionary farm. The park is adjacent to the John J. Tyler Arboretum. Ridley Creek State Park is just over 16 miles (26 km) from downtown, Philadelphia between Pennsylvania Route 352 and Pennsylvania Route 252 on Gradyville Road.
The location of Ridley Creek State Park, just 16 miles (26 km) from downtown Philadelphia, has led to its popularity. Ridley Creek is very popular with fishermen. It is stocked with trout by the Pennsylvania Fish and Boat Commission. A portion of the creek is a designated catch and release area for fly fishing only. There is a wheelchair accessible fishing platform on a multi-use trail. The 12 miles (19 km) of hiking trails at Ridley Creek State Park are popular with dog owners.These trails pass through a variety of habitats. A 5-mile (8 km) multi use trail is open to jogging, bicycling and walking. The park also features a 4.7-mile (7.6 km) equestrian trail.