WASHINGTON — Entrance fees will be waived at all 392 national parks April 17-25 for National Park Week.
Many parks have organized events, talks, volunteer clean-ups and other projects to encourage the public to visit that week. Details, including a "Find a Park" search option, are online at
National Park Service: National Park Week.
National park fees to be waived April 17-25 - BostonHerald.com (http://news.bostonherald.com/entertainment/travel/view/20100414national_park_fees_to_be_waived_april_17-25/srvc=home&position=recent - broken link)