On the occasion of the National Public Lands Day, which is on Sept. 28, The National Park Service, has made entry to all 418 national parks across the US absolutely free for all visitors. This is the 4th event out of the 5, designated by The National Park Service in 2019. January 21: Birthday of Martin Luther King, Jr.April 20: First day of National Park … [Read more...] about National Public Lands Day on September 28, 2019 | Free Entry to All US National Parks