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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



  • Mexico Ready

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 1230 reviews
  • #2 of 13 things to do in Oracle
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Interesting afternoon

The grounds are nicely laid out with easy to follow arrows directing you on the self-guided tour. You can download an app to your phone or use one of their iPads to provide a narrative along the...

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Amazing Place

This awesome place tucked from the hustle and bustle of the rest of the world had us both (wife and myself) wanting to come back for an extended visit - may bring a whole school group!

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Very Cool!

Having heard about the Biosphere since the early 1990s, we had to go visit. The tour was self guided due to the pandemic, but very well done via a cellphone app. Really interesting to hear the...

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  • Wheelchair Accessible
  • Website Listing Tag(s): 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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