Here are the ten days in 2017 where all national parks across the country will waive admission fees.
The 2017 free entrance days will fall on:
- January 16: Martin Luther King Jr. Day
- February 20: Presidents Day
- April 15-16 and 22-23: Weekends of National Park Week
- August 25: National Park Service Birthday
- September 30: National Public Lands Day
- November 11-12: Veterans Day Weekend