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Biosphere 2

Certificate of Excellence
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Address: 32540 S Biosphere Rd, Mile marker 96.5, Oracle, AZ 85623-7019
Phone Number:
1-520-838-6200
Website
Today
09:00 - 16:00
Closed now
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Hours:
Sun - Sat 09:00 - 16:00
Recommended length of visit: 2-3 hours
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 838 reviews
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  • 352
    Excellent
  • 279
    Very good
  • 128
    Average
  • 37
    Poor
  • 22
    Terrible
Educational fun

Cool, educational fun. Indoor rainforest with over 90 plant species is just one of many fascinating facts you'll learn about this place. I found the rainforest and the air chamber... read more

4 of 5 bubblesReviewed 1 week ago
Salina S
,
Phoenix, Arizona
via mobile
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838 Reviews from our TripAdvisor Community

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Showing 818: English reviews
Tucson, Arizona
Level Contributor
22 reviews
4 attraction reviews
common_n_attraction_reviews_1bd8 6 helpful votes
5 of 5 bubbles Reviewed 2 days ago NEW

Educational location for all Worth a half day trip out of Tucson. Best time you go, early morning. The tour is a must. There is a fair bit of going up and down stairs and ramps and one downward tunnel, you need to duck in.

Helpful?
Thank tucsonmike
Sioux City, Iowa
Level Contributor
119 reviews
24 attraction reviews
common_n_attraction_reviews_1bd8 51 helpful votes
5 of 5 bubbles Reviewed 5 days ago NEW

You should check out this experience. Our guide was one of the many scientists involved in this project so he had a vested interest in telling all about the building and their experiments. The tour is not too long. Afterwards you get free time to explore on your own. They have the usual gift shop if that floats your boat.... More 

Helpful?
Thank back2mac09
Phoenix, Arizona
Level Contributor
16 reviews
3 attraction reviews
common_n_attraction_reviews_1bd8 4 helpful votes
4 of 5 bubbles Reviewed 1 week ago via mobile

Cool, educational fun. Indoor rainforest with over 90 plant species is just one of many fascinating facts you'll learn about this place. I found the rainforest and the air chamber most fascinating. I would've liked a little more time for photos and observation time during the tour especially at the rainforest and air chamber stops. Other than that, it was... More 

Helpful?
2 Thank Salina S
Orlando, Florida
Level Contributor
197 reviews
39 attraction reviews
common_n_attraction_reviews_1bd8 76 helpful votes
4 of 5 bubbles Reviewed 1 week ago via mobile

A bit of a trek off the beaten path but absolutely worth it. A very unique experience, great on a very hot day as about 85% is inside. Interesting, informative and when you realize that this group lived together for two years in this "world," suddenly your family vacation seems so much more tolerable. :)

Helpful?
3 Thank Ga8tr
Palmer, Alaska
Level Contributor
69 reviews
15 attraction reviews
common_n_attraction_reviews_1bd8 12 helpful votes
5 of 5 bubbles Reviewed 1 week ago

This is one of those places where you can expect to be entertained then find yourself disappointed. It's a research facility and it's very interesting to learn about the various efforts that have made this place what it is. Initially, the project had a lot of hype to garner interest and funding. Now that the University of Arizona is running... More 

Helpful?
2 Thank Herb B
Boise, Idaho
Level Contributor
236 reviews
90 attraction reviews
common_n_attraction_reviews_1bd8 43 helpful votes
4 of 5 bubbles Reviewed 1 week ago via mobile

The Biosphere 2 is definitely worth the drive north of Tucson. This is a truly amazing facility that was built in 1987-91. They recreated four different climate zones found on our planet to study how they worked and interacted. It is incredible how they thought of host this would all work. They are still developing and learning. Wonderful

Helpful?
2 Thank Ralph L
Maple Valley, Washington
Level Contributor
218 reviews
70 attraction reviews
common_n_attraction_reviews_1bd8 65 helpful votes
4 of 5 bubbles Reviewed 1 week ago

We didn't have time to take the 2 hour tour, but enjoyed the free exhibits and learning the history of the place. Ok gift shop. Fees are in the $20 range to take the tour. Next time!

Helpful?
1 Thank bmonson
Prescott, AZ
Level Contributor
23 reviews
7 attraction reviews
common_n_attraction_reviews_1bd8 27 helpful votes
5 of 5 bubbles Reviewed 1 week ago

This is one of those places I always wanted to visit, but never did. Well, this year my wife and I visited Biosphere 2 while spending a couple weeks at Catalina state park. What an interesting place! To learn the history of how it started and then seeing what the University of Arizona is doing with it today is just... More 

Helpful?
2 Thank Fireout2012
Florence, Montana
Level Contributor
191 reviews
102 attraction reviews
common_n_attraction_reviews_1bd8 39 helpful votes
5 of 5 bubbles Reviewed 2 weeks ago

The Biosphere 2 was an experiment to live like simulating life on the moon or another planet. It is completely self-contained. There is a tropical rain forest, salt water ocean and a desert. Now that the original experiments are over, the Biosphere is still used for studying possible changes to the earth (like carbon dioxide levels increasing). It is very... More 

Helpful?
1 Thank Roger S
Saskatchewan Canada
Level Contributor
89 reviews
36 attraction reviews
common_n_attraction_reviews_1bd8 42 helpful votes
4 of 5 bubbles Reviewed 2 weeks ago via mobile

We stopped here on a weekday and it was very quiet with no wait times. This is a space age honeycomb- like structure and fascinating to see. The buildings house a number of different ecosystems including a rain forest, ocean and desert- plus research facilities, worth a stop for a couple of hours.

Helpful?
1 Thank Westons319

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Questions & Answers

Here's what previous visitors have asked, with answers from representatives of Biosphere 2 and other visitors
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Charlotte, North Carolina
8 months ago
Richmond, Minnesota
Goodyear, Arizona
11 months ago

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Typical questions asked:
  • Do I have to buy a ticket for my infant?
  • How do I get there using public transportation?
  • Is there a restaurant or café onsite?