Darlington County Park is a 178-acre park located in Mahwah, New Jersey, that offers a variety of activities for visitors of all ages. The park features several hiking trails, picnic areas, fishing spots, and a lake for boating.

One of the most popular attractions at Darlington County Park is the Darlington Family Center, which offers a range of programs and activities for families and children, including nature and educational programs. Visitors can also enjoy playing on the playgrounds or spending time with their pets at the dog park.

The park is also known for its rich history, with several historic structures on the property, including the Darlington Mansion, which was built in the early 1900s and is listed on the National Register of Historic Places. The mansion is open for tours during select times of the year.

In terms of the best time to visit, the park is open year-round, but summer is the most popular time to visit due to the warm weather and abundance of outdoor activities. However, fall is a great time to visit for the changing colors of the leaves and the cooler temperatures.

Overall, Darlington County Park is a great destination for anyone looking to enjoy the great outdoors while also learning about the rich history of the area.