Great Falls Tavern Visitor Center | The Chesapeake and Ohio Canal National Historical Park is open during daylight hours year round. The Great Falls Tavern and Cumberland visitor centers operate year round.
The Aerial Forest Adventure Park at Harpers Ferry is the newest addition to River Riders offerings. Only 1 hour from the Washington, DC, Baltimore, Maryland, and Northern Virginia areas, Harpers Ferry is a world away yet close enough for a day trip!
Indiana Dunes National Park 15 miles of shoreline along Lake Michigan, wetlands, prairies, trails, birding, and of course dunes $18 per day for tent camping, but no reservations! First come first served
ACE Volunteer Vacations provides opportunities to participate in service projects at Lake Mead National Recreation Area during April and May 2013. http://www.usaconservation.org/vacations/vacations/lakemead.html
Niagara Falls National Heritage Area, New York: Designated by Congress in 2008, the Niagara Falls National Hertitage Area stretches from the western boundary of Wheatfield, New York to the mouth of the Niagara River on Lake Ontario, including the communities of Niagara Falls, Youngstown, and Lewiston. The region is home to natural wonders, rich cultural traditions, and nationally significant historical sites.