Biosphere 2 – Arizona, UNITED STATES

Biosphere 2 is a unique place on earth, our biosphere 1

Biosphere 2 in Arizona

The University of Arizona owns and operates Biosphere 2

It is a unique place to visit, and we are happily sharing it is open to the public, and all that can be done to make tours accessible has been done.

In this research facility you find the desert, the rainforest and the ocean.

Biosphere 2 in Arizona

Major regional attraction

Biosphere 2 serves as a unique laboratory for controlled scientific studies, a major regional attraction, an arena for scientific discovery and far-reaching public education center.

Biosphere 2 in Arizona
Biosphere 2 Arizona

Life-long learning about Earth

Its mission is to serve as a center for research, outreach, teaching and life-long learning about Earth, its living systems, and its place in the universe.



The University of Arizona Biosphere 2 welcomes all visitors and strives to make its tours, exhibitions, programs, and services accessible to everyone.

While much of the Biosphere 2 campus is wheelchair accessible (watch the video), certain areas of the property are not accessible due the steep terrain as well as the presence of stairs on the under-the-glass guided tour.

The under-the-glass guided tour of the biomes themselves is not accessible for individuals that use wheelchairs or walkers, or that have trouble navigating slopes and stairs.

biosphere ocean

Accessible tours

Upon request, Biosphere 2 provides a modified under-the-glass tour experience for guests with accessibility concerns.

For guests who are unable to visit the parts of the property that are not accessible, there are videos and descriptions available throughout the facility.

Staff at the Biosphere 2 is often able to accommodate same-day requests for accessible tours, however, with advance notice of 5 or more calendar days they can guarantee the accessible tour will be available and wait time shorter.

biosphere rainforest

Sign language, service pets

To inquire about scheduling a tour, fees, or for other questions, please contact Biosphere 2 Admissions at 001-520-621-4800 between the hours of 9am to 4pm Monday through Friday.

For those wishing to request a Sign Language interpreter, please fill out a request at the website contact the University of Arizona. This service must be requested prior to the visit.

Service pets that are trained to do specific tasks are welcome.

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