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Biosphere 2

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Address: 32540 South Biosphere Road, Mile marker 96.5, Oracle, AZ 85623
Phone Number: 800-828-2462, 520-825-1289
Website
Today
9:00 am - 4:00 pm
Open now
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Hours:
Sun - Sat 9:00 am - 4:00 pm
Activities: Group tours/walking tour
Description: Visitors can observe nature in a controlled state at this world-famous...
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.
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TripAdvisor Reviewer Highlights

Read all 515 reviews
Visitor rating
  • 201
    Excellent
  • 194
    Very good
  • 78
    Average
  • 26
    Poor
  • 16
    Terrible
Definitely worth the drive out to Oracle, AZ.

My husband and I enjoyed the tour of the Biosphere 2. We had a terrific guide that knew the place top to bottom. Luckily we were in the first tour of the day, before it got... read more

4 of 5 starsReviewed May 14, 2015
AZcartrip
,
Gold Canyon, Arizona
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515 Reviews from our TripAdvisor Community

Date | Rating
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English first
Peeples Valley, Arizona
Senior Reviewer
9 reviews 9 reviews
4 attraction reviews
4 helpful votes 4 helpful votes
3 of 5 stars Reviewed May 19, 2015 NEW

The University of Arizona is doing a great job of getting this place up and running. I'm sure funding controls the speed in which the facility begins future programs. Its clean but the facilities exhibits are in poor shape and the entry fee is very expensive for what you get. After saying all this I'm going to keep watching this... More 

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1 review
2 of 5 stars Reviewed May 19, 2015 NEW via mobile

We walked up to the building and a tour was being given near the front doors. Before we even got near the doors the tour guide stopped talking mid-sentence and very rudely told us to go inside so we didn't hear one word of the tour without paying for it. So we went and looked around the gift shop reading... More 

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Ladner, Canada
Contributor
19 reviews 19 reviews
4 attraction reviews
23 helpful votes 23 helpful votes
5 of 5 stars Reviewed May 17, 2015 NEW

The complex is 3.14 acres with 4 main large science buildings. There are five different natural environments. We took a guided tour that lasted 2.5 hours and was very good. It made for a long day but a visit to this complex is highly recommended.

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BROKEN ARROW
Top Contributor
54 reviews 54 reviews
12 helpful votes 12 helpful votes
5 of 5 stars Reviewed May 15, 2015

Sponsored by the University of Arizona, Biosphere 2 is a fascinating look back at a grand experiment into our planet earth. Learn how the wind, rain, humidity, etc. impacts every living creature. Not only is the guided tour excellent, there is a very interesting gift shop and nice restaurant right there at the Biosphere. Dine and enjoy a view of... More 

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Gold Canyon, Arizona
Top Contributor
90 reviews 90 reviews
30 attraction reviews
38 helpful votes 38 helpful votes
4 of 5 stars Reviewed May 14, 2015

My husband and I enjoyed the tour of the Biosphere 2. We had a terrific guide that knew the place top to bottom. Luckily we were in the first tour of the day, before it got too hot. And, the tour group was very small and interested to. That made it nice. We knew of the Biosphere 2 from the... More 

Was this review helpful? Yes 1
seattle
Senior Contributor
31 reviews 31 reviews
11 attraction reviews
45 helpful votes 45 helpful votes
4 of 5 stars Reviewed May 12, 2015

I think it would help to read about the history of the Biosphere 2 before going on this excursion. The tour guide was quite good and obviously a science buff. The mix of the tour group was a little disappointing. Several very young children and some rather disinterested adults made the tour rather tedious for me. This is not Disneyland... More 

Was this review helpful? Yes 1
Salt Lake City, Utah
Reviewer
3 reviews 3 reviews
3 helpful votes 3 helpful votes
5 of 5 stars Reviewed May 7, 2015

Loved the tour. I want the rain barrels they have on their houses there at my house. We went because they were featuring the eco system of the Sea of Cortez. It was not yet finished. I really hated the exhibit dedicated to John Steinbeck. Everything else was great

Was this review helpful? Yes 1
Bengaluru
Top Contributor
497 reviews 497 reviews
327 attraction reviews
521 helpful votes 521 helpful votes
4 of 5 stars Reviewed May 6, 2015

I went to this place when I visited a friend in oracle. We took a tour of the biosphere and were thrilled to see the place and the way the place is maintained to this day. This is an unique research facility used to study ecosystem processes under controlled conditions. This is a fully glass enclosed facility 91ft. tall highest... More 

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Contributor
14 reviews 14 reviews
4 attraction reviews
6 helpful votes 6 helpful votes
4 of 5 stars Reviewed May 4, 2015

This was a pretty cool place. We bought a ticket for 2 from groupon and made a weekend out of it. It was great being able to have a tour guide to explain things although sometimes the groups were large and there were kids or people who lagged behind. It was interesting to see all the different ecosystems thrive in... More 

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Albany, New York
Senior Contributor
23 reviews 23 reviews
4 attraction reviews
6 helpful votes 6 helpful votes
4 of 5 stars Reviewed May 1, 2015

It's quite amazing to see how those people lived within Biosphere 2. It's also great that the facility is still being used as a place to study. The tour was good and there is a good deal of walking - it is a very big place. Glad we went.

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Questions & Answers

Here's what previous visitors have asked, with answers from representatives of Biosphere 2 and other visitors
2 questions
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Red Wing
4 months ago

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Questions? Get answers from Biosphere 2 staff and past visitors.
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Typical questions asked:
  • Will you pick up and drop off at my hotel?
  • I have a family of 7. Can your tour accommodate all of us together?
  • How should I dress for this tour?