This Saturday, September 24, more than 100 national parks will waive the entrance fees for National Public Lands Day! Go to the National Park Service website for a list of participating parks. The National Park Service also has an easy-to-use directory of parks by name, location, activity and topic.
Entrance fees to National Parks will be waived again on November 11 for Veterans Day. This gives you some time to plan ahead if you want to!