The following is a compilation of American federal holidays, federal observances, state holidays and other common patriotic and national observances and commemorations that apply to the United States during Sunday, 2021-04-25:
Our National Parks have allowed generations to discover history, nature, and wildlife in irreplaceable ways. From the highest peaks of Denali to the lowest dips of the Grand Canyon, families around our country enjoy the splendor of the outdoors. Throughout National Park Week, as we celebrate the ways in which our treasured outdoor spaces enrich our lives and uplift our spirits, the National Park Service will again offer free admission to America's National Parks so more people can explore our country's vast natural beauty.