Bull Run park has large fields where you can hold events and lots of different picnic pavilions and shelters. One large shelter we checked out was called "The Barn" and had a small playground nearby just outside the fence and across the small parking lot was a sand filled playground with clean lit restrooms nearby. The sand filled playground had a lot of older metal equipment and a swing set. There were benches near by with some shade.
Once we were done playing in the large sand playground we walked around on some the trails. There are miles of trail throughout the park with some being paved road and most be equestrian/hiking trails. If you like to camp the park had many spots for tent, RV or cabin camping. A newer large playground is located near the camp grounds and favorite of my children.
Also part of the park is Atlantis Waterpark which is open from Memorial Day to Labor Day weekend. Near the waterpark you can find the Disc golf course which is open all year.
Near the entrance of the park, NVRPA constructed a Civil War Winter quarters and camp site for the public to see a little bit of history about the The First Battle of Manassas where Bull Run was crossed to engage in conflict.
Bull Run Regional Park is a great spot if you love to camp, host events or hike around. The older playground is supported by the newer equipment throughout the park. My kids and I saw lots of wildlife including turtles, geese and deer. Great park with lots to offer!