National Park Service marks 110th birthday with free admission Aug. 25
AI summaryThe National Park Service is celebrating its 110th birthday on Aug. 25 by waiving entrance fees at all national parks for U.S. citizens and residents. The free day is part of National Park Week, which runs Aug. 22-30, and includes themed days and a Google doodle featuring Yellowstone. Future free admission dates in 2026 are also announced.