Location
Great Falls Park is accessible from both sides of the Potomac River. The Virginia park is located at 9200 Old Dominion Drive, McLean, Virginia.

The Maryland side is a part of the C & O Canal National Historic Park and is located off of Falls Road in Potomac. There is not access between the two sides of the Potomac River.

Park Hours
Great Falls Park is open from 7 a.m. until dark every day except December 25th. The Visitor Center is open from 10 a.m. until 4 p.m. daily, with extended hours during the spring and summer.

Admission
There is a $5.00 per vehicle entrance fee and a $3.00 fee for visitors entering the park on foot, horseback, bicycle, or motorcycle.

官方网站：www.nps.gov/grfa