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Biosphere 2–The University of Arizona

Pinal County

32540 S. Biosphere Rd.
Oracle, AZ 85623
United States

Phone: (520) 621-4800



The New BIOSPHERE 2 Experience App allows visitors to explore Biosphere 2 and choose your own private adventure!  Never seen before videos and photos that visualize the science and amazing 30-year history of this "Wonder of the World!". Through exciting stories and interviews you'll have the opportunity to learn more about our world-class environmental research. Your walking tour includes a safe (socially distanced) one-way path around the Biosphere 2 exterior, and finally into and under the glass of the reopened portion of Biosphere 2 itself! Please purchase online ticket in advance. Open Daily / / 520-621-4800.Visit today Just 30 minutes North of Tucson.


  • TripAdvisor Traveler Rating
    Based on 1239 reviews
  • #2 of 13 things to do in Oracle
  • Show Reviews

Unique Facility

This place is certainly a rare and unique place to visit. How could we not take our 9 year old daughter?!! She was a little bored walking around outside, looking at building and listening to virtual...

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Fascinating Place

We have made a couple of visits here, and learn more each time. The tours are so interesting. This is really a one-of-a-kind location.

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Boring and Not Interactive

Very disappointed in our “tour”. You are told to download an app and watch 18 videos as you walk the complex. While we did go in part of one of the buildings there was so little information given...

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  • Wheelchair Accessible
  • Website Listing Tag(s): Oro Valley/Oro Valley

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Health and Safety Protocols

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Meeting Facilities

  • Number of Meeting Rooms 2
  • Largest Meeting Room 1862
  • Banquet Capacity 120

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