The only way to get to the park is via personal transport, cab or Uber. The nearest metro station is the Dunn Loring and West Falls Church stations, which are 7 miles away. A cab ride should be approximately 15$ from there.
Photo Spot Details
The great falls is on the north side of Washinton DC. It is a part of the Potomac river, which goes over the Mather gorge. The narrow gorge causes the river to speed up and crash through creating scary but extraordinary floods of water. This creates some spectacular and exciting views. The trails are designed to give the park visitors a direct view over the falls. A good sturdy tripod is needed as the place can get quite windy. The park closes by sunset, so if you visit early during the day, get some good dark gradient filters to get long exposure shots of the waterfalls.