CONTACT INFORMATION:
Visitor Center Open Hours: Saturday and Sunday, 11 a.m. – 4 p.m., Ticketed tours available at 11 a.m., 1 p.m. and 3 p.m. The park grounds are open from dawn through dusk.
Welcome to Fairfax County’s 2024 Earth Day Festival! The Largest Earth Day Celebration in Fairfax County! Come celebrate with Fairfax County Park Authority at the Sully Historic Site on April 20, 2024 from 10 a.m. to 4 p.m.