Visit any national park for free on these dates in 2022

Around one-quarter of the 400 national parks, historical sites, monuments, trails, forests and more that are managed by the U.S. National Parks Service charge fees for entry, but there are a few days each year when these incredible areas are opened to the public for free. This upcoming year will have five free days when admission is waived for every park that usually requires payment. The 2022 free days are as follows: — Jan. 17: Birthday of Martin Luther King, Jr. — April 16: First day of National Park Week — Aug. 4: Anniversary of the Great American Outdoors Act — Sept. 24: National Public L...