Great Falls, Maryland is one of the premier parks in the Washington, DC area.  The Billy Goat Trail is in my top five trails of all time.  It is also a great spot to make photographs. The landscape is totally unexpected for this part of the country.  There is really nothing else like it around here.  Almost everyday you will find kayakers paddling and exploring the Potomac River.  The majority of the Potomac is rather calm (although the tides are very strong and the river is quite deep).  This section at Great Falls Park is as violent and daunting as any section of river east of the Mississippi.  Only the most experienced kayakers will risk their lives to run this section of falls.  Not all survive (no joke).  A few images of a couple guys hitting the falls.  I was so happy to see the red kayaks.