National Park Week 2019: Celebrating America’s National Parks WASHINGTON - National Park Week, running from April 20 through 28, has something for everyone! Join the National Park Service and the National Park Foundation for nine days of fun, including National Junior Ranger Day and National BARK Ranger Day. Visit www.NationalParkWeek.org for more information and a list of special events. “National parks are sources of inspiration, recreation, and education for everyone,” sai