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Biosphere 2

32540 S Biosphere Rd, Mile marker 96.5, Oracle, AZ 85623-7019
+1 520-838-6200
Review Highlights

We visited today...my 88 year old mother and her 3 daughters. We did not want to leave. We learned... read more

Reviewed 2 weeks ago
Sisters, OR

Biosphere 2 was originally an experiment in living in a closed-environment. More recently it has... read more

Reviewed 3 weeks ago
Vancouver, Canada
Read all 950 reviews
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Visitors can observe nature in a controlled state at this world-famous steel and glass research center where desert, forest, ocean and other ecosystems are monitored and studied.
  • Excellent46%
  • Very good33%
  • Average15%
  • Poor4%
  • Terrible2%
Travellers talk about
“living quarters” (48 reviews)
“guided tour” (89 reviews)
Closed Now
All hours
Hours Today: 9:00 AM - 4:00 PM
Suggested Duration: 2-3 hours
32540 S Biosphere Rd, Mile marker 96.5, Oracle, AZ 85623-7019
+1 520-838-6200

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11 - 20 of 921 reviews

Reviewed 2 weeks ago

We visited today...my 88 year old mother and her 3 daughters. We did not want to leave. We learned so much about our planet and our sustainability. This is a fantastic way to spend 1/2 day..or more. We will never forget what we experienced here...More

1  Thank OrlandosAmore
Reviewed 3 weeks ago

Biosphere 2 was originally an experiment in living in a closed-environment. More recently it has been taken over by the University of Arizona for controlled environmental and climate-change study. It was fascinating to see the structure but equally interesting, even to lay people like us,...More

Thank GVancouver
Reviewed 3 weeks ago

Our visit was an amazing experience. We were the first group since the University took Bio 2. The hotel on the hill was great, the food was good. The actual experiment was fascinating. We felt like we were the original occupants as we were the...More

Thank Backgammon48
Reviewed 4 weeks ago

8 dedicated scientists involved in re-creating an Earth environmental atmosphere for the purpose of future colonization. A brilliant attempt to witness the probable advantages and potential problems engaging the "Human Factor" living off our planet. Stated as being a very SUCCESSFUL FAILURE---to visit this unique...More

Thank alan a
Reviewed 16 January 2018 via mobile

Our tour guide Sandra was SO INFORMATIVE and the climate research that is being done there is not only fascinating, but a marvelous antidote to the poison l current president of the US is spewing about the fake news of human contribution to global warming....More

1  Thank edieann
Reviewed 13 January 2018

We live in Phoenix and come down to Tucson regularly for soccer tournaments and have never done this since I thought my kids would find it boring. No way. They loved it! So did I. It was beautiful and interesting and different and educational. Really...More

Thank AimeeLally
Reviewed 11 January 2018

Wasn't impressed with Bio2. Having lived in Tucson for over 50 year, we thought we should go see this "must see" attraction. The architecture of course, is impressive. The huge glass structures, the geodesic domes. That was pretty incredible. The research going on there now,...More

Thank Jim G
Reviewed 7 January 2018

Interesting to see the different ecological systems enclosed inside this glass house. We took both the "History Tour" and the "General Tour". Lots of walking, lots of steps, lots of uneven surfaces so it is not for the mobility challenged. However for those who can...More

Thank Dale H
Reviewed 6 January 2018 via mobile

I'm sure there is some exciting research going on here, but we didn't hear about it on our dumbed-down tour. It seems as if this historical artifact is struggling to find a reason to exist. The real story here is about why Biosphere 2 happened....More

1  Thank Waterwalla
Reviewed 4 January 2018

If there is meaningful current research occurring at this facility, the tour staff are either unaware, or don't understand it well enough to share it with an adult audience. The guide spoke to us as though we were elementary school students and offered dumbed-down descriptions...More

Thank Sherman N
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Ask a question
Questions & Answers
6 February 2018|
AnswerShow all 2 answers
Response from edieann | Reviewed this property |
The basic tour is free😀
27 January 2018|
AnswerShow all 7 answers
Response from edieann | Reviewed this property |
Reservations aren't required