Each year the National Parks Service allows free entrance to all national parks and monuments on a handful of days. Good thing, because Arizona has a bunch of them to explore.

No charge to visit national parks on these days in 2021:
- January 18: Birthday of Martin Luther King, Jr.
- April 17: First day of National Park Week
- August 4: One year anniversary of the Great American Outdoors Act
- August 25: National Park Service Birthday
- September 25: National Public Lands Day
- November 11: Veterans Day
For details on individual National Parks sites, visit nps.gov
On the days listed above, visitors are granted free admission

National Parks and Monuments in Arizona:
- Casa Grande Ruins National Monument
- Canyon de Chelly
- Glen Canyon National Recreation Area
- Grand Canyon National Park
- Lake Mead National Recreation Area
- Montezuma Castle National Monument
- Navajo National Monument
- Organ Pipe Cactus National Monument
- Petrified Forest National Park
- Pipe Spring National Monument
- Saguaro National Park
- Sunset Crater Volcano National Monument
- Tonto National Monument
- Tumacácori National Historical Park
- Tuzigoot National Monument
- Walnut Canyon National Monument
- Wupatki National Monument
- Tonto National Monument
- Tumacácori National Historical Park
- Tuzigoot National Monument
- Walnut Canyon National Monument
- Wupatki National Monument

Want the inside scoop on more amazing places like this? Grab a copy of Arizona Bucket List Adventure Guide.
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Did you know?
- There are 10 free, year-round amazing national monuments in Arizona?
- Fourth graders* and their families can get free access to national parks
*For fifth graders (2021 only)
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- A visit to Petrified Forest National Park takes you back millions of years in time
- Explore ancient cliff dwellings at Walnut Canyon National Monument
- Step back in time several hundred years at the ancient dwellings of Tuzigoot National Monument
- Experience the spirit of the Southwest at Tonto National Monument cliff dwellings