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National Park Service: Guided Rim Walk | Ranger Program

Grand Canyon National Park - South Rim Grand Canyon

Learn about Grand Canyon's natural world on a one-hour guided walk on a paved pathway along the canyon rim. Topics vary and may include: animals and plants adapting to changing seasons, man's impact on nature, how nature inspires writers and poets, rare and endangered species, or Indigenous people's use of plants and animals. Program duration: 60...

Free with Park Fee

Reid Park Zoo: Sean Kenney’s Nature Pop!

Reid Park Zoo 3400 Zoo Court, Tucson

Part art. Part engineering. Totally amazing! Add a pop of wonder and a pinch of nostalgia to your spring with Sean Kenney’s Nature Pop! Marvel at over 40 wildly creative sculptures made entirely of LEGO® bricks at this exhibition, included with Zoo admission and free for Zoo members from 9 a.m. to 4 p.m. daily....

Free with Admission

The University of Arizona: Laboratory of Tree-Ring Research Docent-led Tour

Bryant Bannister Tree-Ring Building 1215 E. Lowell St., Tucson

Join us for our free docent-led tour in the lobby of the Bryant Bannister Tree-Ring Building (1215 E. Lowell St.). Visitors will be introduced to the basic tenets of dendrochronology and have a chance to examine specimens. During your 1.5 hour tour, you will be introduced to the basic tenets of dendrochronology, have a chance to...

Free

National Park Service: Geology Talk | Ranger Talk

Grand Canyon National Park - South Rim Grand Canyon

Enhance your afternoon with quick insights into the geologic story of Grand Canyon at our "Geology Talk" ranger program. Meet in front of Yavapai Geology Museum. Learn how this immense canyon formed and the science behind the landscape. The program is 30 minutes long and is accessible. Grand Canyon is one-mile deep, up to 18 miles wide, 277 river...

Free with Park Fee