Biosphere 2
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
Sunday
9:00 AM - 4:00 PM
About
Biosphere 2 has Reopened with a Great New Experience! The Biosphere 2 Experience app includes never before seen photos and videos that visualize the science and 30-year history. Through science stories and interviews you'll have the opportunity to learn more about our amazing, world-class research as you traverse a safe (socially distanced) one-way path around the exterior, and finally into reopened portions of the interior of Biosphere 2 itself!. Download the free Biosphere 2 Experience app to serve as your personal guide as you embark on an evening of science, history and unforgettable views! Your visit directly contributes to the research and education mission of Biosphere 2, thank you for your support! TICKETS MUST BE PRE-PURCHASED ONLINE. Please visit www.biosphere2.org to purchase tickets There will be a limited number of tickets sold per day. Once a limit is reached on a particular day, interested guests must select another day.
Duration: 1-2 hours
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  • Rob4Patti
    White River Junction, Vermont198 contributions
    5.0 of 5 bubbles
    Could you survive with only plants and water
    This is a great place if you are interested in how well you can survive on living in an environment that is self sustaining. It was an experiment with people that last two years without being outside. They had their own water supply, grow their food supply and had oxygen. This place should be on your bucket list. It was very interesting to see how plants and humans survived together
    Visited September 2023
    Travelled with family
    Written 28 September 2023
  • Mike G
    374 contributions
    5.0 of 5 bubbles
    About 20 miles north of Tucson but absolutely unique and well worth the drive
    The history of this place has had its ups and downs but it is now managed by the University of Arizona. The excellent self guided tour is about a miles worth of walking and takes about 90 minutes or so ($25 for seniors). There are about 121 informative stops (you should pre load the tour to your phone) which provide lots of detail on the history and current status of this sort of exceptional facility.
    Visited December 2023
    Travelled as a couple
    Written 5 December 2023
  • Richard M
    Phoenix, Arizona453 contributions
    5.0 of 5 bubbles
    Listen and learn
    The high degree of naivete exhibited by the project managers and participants is incredible. It illustrates how ideology can dominate thought and overcome science. That aside, it is an exciting facility to visit. The tour is well set out, the app gives you a short explanation at each stop, and one need only follow the arrows painted on the ground to learn. Be sure to listen with a critical ear, and you’ll hear some internal contradictory statements even within one stop. However, many, if not most, zoos and other outdoor locations would do well to examine and copy Biosphere’s tour and marking system. It is excellent.
    Visited January 2024
    Travelled as a couple
    Written 11 January 2024
  • Chris Sidwell
    6 contributions
    5.0 of 5 bubbles
    Interesting tour!
    The self guided tour was very well done, listening through our own devices. We also did the Library and personal residence tour with a guide and it was definitely worthwhile. This was very interesting and just a short drive from downtown Tucson. Be sure to listen to the podcast they send a link for on your drive there.
    Visited January 2024
    Travelled as a couple
    Written 21 January 2024
  • Joan G
    Bay Shore, New York17 contributions
    5.0 of 5 bubbles
    A++
    Well worth it. Fascinating. I use a walker and I was nicely accommodated. However, if you decide to go into the rainforest/ocean part there are a lot of steps. My husband was a great sport and carried my walker up the steps. It’s also hot and humid in that part ( duh- it’s a rainforest) so keep that in mind.
    Visited April 2024
    Travelled as a couple
    Written 18 April 2024
  • liz
    Mesa, Arizona13 contributions
    5.0 of 5 bubbles
    Highly recommend!!
    Fascinating!! Well done!! I learned so much. Very clean, good restrooms and water bottle filling stations. Wear layers because you will be 50% inside 59% outside. The surrounding views are amazing as well. A beautiful place!
    Visited May 2024
    Travelled with friends
    Written 7 May 2024
  • Sergio M
    Arlington, Virginia99 contributions
    5.0 of 5 bubbles
    I recommend purchasing the tour
    I love this sci-fi stuff. The facility is a bit of a drive through the dessert. Coming from a big city, I enjoyed the drive to get here. The facility is huge! But to get the most out of the experience, get the behind-the-scenes tour. I was able to learn from the staff the full details of what the experiment was. Will come again.
    Visited May 2024
    Travelled with friends
    Written 4 June 2024
  • Weather Maven
    Tucson, Arizona6 contributions
    4.0 of 5 bubbles
    A unique spot
    This is a SELF-GUIDED tour, you will need to download an app to follow along. Entry price is a little steep for what you get, BUT part of it goes toward continuing to fund the projects contained within. Lots of walking inside and out, around this large campus. A unique spot. Now run/used by the University of Arizona for active research. Past history well documented in film & news articles. Worth visiting if you're into science.
    Visited June 2024
    Travelled with family
    Written 7 June 2024
These reviews are the subjective opinion of Tripadvisor members and not of TripAdvisor LLC. Tripadvisor performs checks on reviews.

Most Recent: Reviews ordered by most recent publish date in descending order.

Detailed Reviews: Reviews ordered by recency and descriptiveness of user-identified themes such as waiting time, length of visit, general tips, and location information.

Popular mentions

4.0
4.0 of 5 bubbles1,300 reviews
Excellent
618
Very good
423
Average
162
Poor
57
Terrible
40

Weather Maven
Tucson, AZ6 contributions
4.0 of 5 bubbles
Jun 2024 • Family
This is a SELF-GUIDED tour, you will need to download an app to follow along. Entry price is a little steep for what you get, BUT part of it goes toward continuing to fund the projects contained within. Lots of walking inside and out, around this large campus. A unique spot. Now run/used by the University of Arizona for active research. Past history well documented in film & news articles. Worth visiting if you're into science.
Written 7 June 2024
This review is the subjective opinion of a Tripadvisor member and not of Tripadvisor LLC. Tripadvisor performs checks on reviews as part of our industry-leading trust & safety standards. Read our transparency report to learn more.

Sergio M
Arlington, VA99 contributions
5.0 of 5 bubbles
May 2024 • Friends
I love this sci-fi stuff. The facility is a bit of a drive through the dessert. Coming from a big city, I enjoyed the drive to get here. The facility is huge! But to get the most out of the experience, get the behind-the-scenes tour. I was able to learn from the staff the full details of what the experiment was. Will come again.
Written 4 June 2024
This review is the subjective opinion of a Tripadvisor member and not of Tripadvisor LLC. Tripadvisor performs checks on reviews as part of our industry-leading trust & safety standards. Read our transparency report to learn more.

Daniel L
Apex, NC757 contributions
5.0 of 5 bubbles
May 2024 • Couples
I had always heard of the project in the context of it being a failure, and for some reason always assumed then that the Biosphere 2 was left to decay - but that couldn't be further from the truth.

There is still a ton of cool research being done, and the biomes inside are really amazing to see created in such a strangely inhospitable location. One of a kind.
Written 22 May 2024
This review is the subjective opinion of a Tripadvisor member and not of Tripadvisor LLC. Tripadvisor performs checks on reviews as part of our industry-leading trust & safety standards. Read our transparency report to learn more.

liz
Mesa, AZ13 contributions
5.0 of 5 bubbles
May 2024 • Friends
Fascinating!! Well done!! I learned so much. Very clean, good restrooms and water bottle filling stations. Wear layers because you will be 50% inside 59% outside. The surrounding views are amazing as well. A beautiful place!
Written 7 May 2024
This review is the subjective opinion of a Tripadvisor member and not of Tripadvisor LLC. Tripadvisor performs checks on reviews as part of our industry-leading trust & safety standards. Read our transparency report to learn more.

Joan G
Bay Shore, NY17 contributions
5.0 of 5 bubbles
Apr 2024 • Couples
Well worth it. Fascinating. I use a walker and I was nicely accommodated. However, if you decide to go into the rainforest/ocean part there are a lot of steps. My husband was a great sport and carried my walker up the steps. It’s also hot and humid in that part ( duh- it’s a rainforest) so keep that in mind.
Written 18 April 2024
This review is the subjective opinion of a Tripadvisor member and not of Tripadvisor LLC. Tripadvisor performs checks on reviews as part of our industry-leading trust & safety standards. Read our transparency report to learn more.

Berns
Toronto, Canada174 contributions
5.0 of 5 bubbles
Feb 2024 • Friends
This was an excellent experience. We really enjoyed learning all about this place and recommend that you take all of the tours!
Written 14 February 2024
This review is the subjective opinion of a Tripadvisor member and not of Tripadvisor LLC. Tripadvisor performs checks on reviews as part of our industry-leading trust & safety standards. Read our transparency report to learn more.

riverrunnermo
Kansas City, MO182 contributions
1.0 of 5 bubbles
Jan 2024 • Couples
Could not see it from the visitors center, and the ticket price is over-the-top. After driving north out of Tucson to Oracle and then on to Biosphere, we were expecting better. The restrooms on the way into the visitor center were locked, and had to have someone in a student study class let us in to that building. We then went to the visitor center and found the pricing. OUCH! $50 for two seniors. $54 for two adults. The gift shop was lacking what most museums have and what they did have was very overpriced. Over $2 for a postcard? You have to be kidding. We decided to move on with our vacation a lot sadder and wiser. Next time, we will check first. Many years ago, we visited and were able to walk around the structure in the summer heat of 109 degrees.
Written 8 February 2024
This review is the subjective opinion of a Tripadvisor member and not of Tripadvisor LLC. Tripadvisor performs checks on reviews as part of our industry-leading trust & safety standards. Read our transparency report to learn more.

Dawna D
Litchfield, NH17 contributions
1.0 of 5 bubbles
Feb 2024 • Friends
Nothing like virtual tours or photos, dead plants, smells of mold, extremely run down, structure is severely rusting, glass panels leak and many are filthy and not maintained. Tour now is narrated on a phone app, only half of tour is actually inside biosphere. My friend went several years ago and was excited for me to see...WHAT A DISAPPOINTMENT!!! Nothing like it was then, very dilapidated.
Written 2 February 2024
This review is the subjective opinion of a Tripadvisor member and not of Tripadvisor LLC. Tripadvisor performs checks on reviews as part of our industry-leading trust & safety standards. Read our transparency report to learn more.

Chris Sidwell
6 contributions
5.0 of 5 bubbles
Jan 2024 • Couples
The self guided tour was very well done, listening through our own devices. We also did the Library and personal residence tour with a guide and it was definitely worthwhile. This was very interesting and just a short drive from downtown Tucson. Be sure to listen to the podcast they send a link for on your drive there.
Written 21 January 2024
This review is the subjective opinion of a Tripadvisor member and not of Tripadvisor LLC. Tripadvisor performs checks on reviews as part of our industry-leading trust & safety standards. Read our transparency report to learn more.

Richard M
Phoenix, AZ453 contributions
5.0 of 5 bubbles
Jan 2024 • Couples
The high degree of naivete exhibited by the project managers and participants is incredible. It illustrates how ideology can dominate thought and overcome science. That aside, it is an exciting facility to visit. The tour is well set out, the app gives you a short explanation at each stop, and one need only follow the arrows painted on the ground to learn.

Be sure to listen with a critical ear, and you’ll hear some internal contradictory statements even within one stop. However, many, if not most, zoos and other outdoor locations would do well to examine and copy Biosphere’s tour and marking system. It is excellent.
Written 11 January 2024
This review is the subjective opinion of a Tripadvisor member and not of Tripadvisor LLC. Tripadvisor performs checks on reviews as part of our industry-leading trust & safety standards. Read our transparency report to learn more.

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Biosphere 2 - All You Need to Know BEFORE You Go (2024) - Tripadvisor

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