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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
Closed 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 542 reviews
Visitor rating
  • 209
    Excellent
  • 203
    Very good
  • 85
    Average
  • 27
    Poor
  • 18
    Terrible
Interesting science experiment

The Biosphere2 is a fantastic research facility that started out as a privately funded experiment on the possibility to create habitats on other planets, but now an environmental... read more

4 of 5 starsReviewed July 26, 2015
Harm-Jan W
,
Erica, Drenthe, Netherlands
via mobile
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542 Reviews from our TripAdvisor Community

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Date | Rating
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English first
Erica, Drenthe, Netherlands
Level Contributor
81 reviews
29 attraction reviews
common_n_attraction_reviews_1bd8 24 helpful votes
4 of 5 stars Reviewed July 26, 2015 via mobile

The Biosphere2 is a fantastic research facility that started out as a privately funded experiment on the possibility to create habitats on other planets, but now an environmental research centre for the University of Arizona. The size of this project is impressive. The tour is somewhat underwhelming, and I feel it could be better. Still, it was a great opportunity... More 

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Dubbo, New South Wales, Australia
Level Contributor
112 reviews
69 attraction reviews
common_n_attraction_reviews_1bd8 26 helpful votes
4 of 5 stars Reviewed July 20, 2015

Being something of a science nut I was looking forward to visiting this attraction. My first view of it certainly had a 'wow' factor. Tours are conducted on a regular basis and I was enthralled by the comprehensive history of the project outlined by the guide. I found the whole experience unforgettable; but then I'm something of a science nut.... More 

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Salt Lake City, Utah
Level Contributor
21 reviews
8 attraction reviews
common_n_attraction_reviews_1bd8 11 helpful votes
4 of 5 stars Reviewed July 20, 2015

This is a very cool massive science lab that includes 5 biomes under an enclosed dome. The tour will take you through the history of it's existence, what's happening there today and also lets you explore the apartments from when people lived there.If you have a budding scientist, he/she would probably love it. It's not your typical tourist attraction, definitely... More 

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Lakeland, Florida
Level Contributor
10 reviews
5 attraction reviews
common_n_attraction_reviews_1bd8 3 helpful votes
3 of 5 stars Reviewed July 19, 2015

Nice education, but overpriced in my opinion. Nice people and very informative, but maybe i am more of a physical sciences guy rather than life sciences. In retrospect, I would have passed on this tour knowing what I know now.

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Statesboro, Georgia
Level Contributor
36 reviews
31 attraction reviews
common_n_attraction_reviews_1bd8 16 helpful votes
3 of 5 stars Reviewed July 11, 2015

I'm not sure if this was worth the extra drive, to be quite honest, and let me tell you why. This structure is impressive in photos, but you have to look closer. We arrived close to closing time, so we were not able to take a tour, and I'm kind of glad we didn't. I walked around the outside of... More 

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Gilbert, Arizona
Level Contributor
120 reviews
36 attraction reviews
common_n_attraction_reviews_1bd8 50 helpful votes
4 of 5 stars Reviewed July 8, 2015

We visited Biosphere 2 in June 2015 and it was worth the time spent. The original purpose of the construction was to demonstrate that humans can live in a totally enclosed environment and sustain themselves. Two missions, between 1991 and 1994, sealed Biospherians inside the glass enclosure to measure survivability. The participants grew there own food and had systems to... More 

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A TripAdvisor Member
1 of 5 stars Reviewed July 7, 2015

If you have the option to tour the Biosphere or any other place, choose any other place. The tour guide was horrible. The information she provided about the applicable section was in no order. We asked a question about the ants, and she responded, "Do you know something about the ants that I don't?" The tour lasted about 3 hours.... More 

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Level Contributor
20 reviews
10 attraction reviews
common_n_attraction_reviews_1bd8 4 helpful votes
5 of 5 stars Reviewed July 7, 2015

This is a facinating science project! Very interesting and I would recommend reading one or more of the books by the actual Biospherians before coming!

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Houston, Texas
Level Contributor
25 reviews
3 attraction reviews
common_n_attraction_reviews_1bd8 3 helpful votes
5 of 5 stars Reviewed July 7, 2015

Out in the desert, about 23 miles from Tucson, AZ is the biosphere2 ( bisophere 1 being the earth itself- in case you were wondering). This is an amazing facility with some very cool research projects. There is an hour long guided tour, every 30-45 minutes. The tour guides are super nice and by the end of the tour, you... More 

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Arizona
Level Contributor
19 reviews
7 attraction reviews
common_n_attraction_reviews_1bd8 5 helpful votes
4 of 5 stars Reviewed July 6, 2015

Biosphere 2 is worth a visit and if you get a good tour guide it really can be enlightening learning why this experiment failed on many fronts ! However there were many successes over the years and it was really cool visiting this historical place of American history. I don't want to give away the farm but don't expect any... More 

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Additional Information about Biosphere 2

Address: 32540 South Biosphere Road, Mile marker 96.5, Oracle, AZ 85623
Phone Number: 800-828-2462, 520-825-1289
Location: United States  >  Arizona (AZ)  >  Oracle
Open Hours:
Sunday 9:00 am - 4:00 pm
Monday 9:00 am - 4:00 pm
Tuesday 9:00 am - 4:00 pm
Wednesday 9:00 am - 4:00 pm
Thursday 9:00 am - 4:00 pm
Friday 9:00 am - 4:00 pm
Saturday 9:00 am - 4:00 pm

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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
7 months ago

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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?