Join National Park Service archeologists and biologists on National Public Lands Day (free entrance) to learn about Walnut Canyon’s natural and human history.

Try your hand at throwing at an atlatl and enjoy other hands-on activities for kids.

Part of Flagstaff Festival of Science, a free annual 10-day event wholly designed to promote awareness and enthusiasm for science in and about northern Arizona and beyond, and is fondly known as the Best 10 Days of the Year. Established in 1990, it is the longest, continuously running, entirely free science festival in the world.