Cancel

    Open app

    Search

    Biosphere 2

    3.9 (315 reviews)
    Closed 9:00 am - 4:00 pm

    Biosphere 2 Photos

    You might also consider

    Recommended Reviews - Biosphere 2

    Your trust is our priority, so businesses can't pay to alter or remove their reviews. Learn more about reviews.
    Yelp app icon
    Browse more easily on the app
    Review Feed Illustration

    Reviews With Photos

    View from the Library
    Belle V.

    My initial visit to this remarkable location was truly delightful. I wholeheartedly encourage everyone to experience it. It offers a profoundly educational journey with an abundance of sights, making it an exceptionally worthwhile endeavor. I would suggest opting for all three guided tours to gain access to areas not available through the self-guided option. I am particularly pleased that this establishment is conveniently situated near my residence. Please consider bringing some refreshments, as the cafe is currently closed. Be prepared for a considerable amount of walking and exploration.

    Emil C.

    I got to check this place out a little bit when I was out here for the Tucson Marathon. The race had used this venue and the surrounding roads as the starting area for the race. Its name is Biosphere 2 as it is modeled after Earth, Biosphere 1. It is currently owned by the University of Arizona where their scientists continue to do their research. The biomes that they have under glass are ocean, mangrove wetlands, tropical rainforest, savanna grassland, and fog desert. I would love to return and check out the place in more detail. If environmental science is your thing, you should come check this place out!

    Willy H.

    Biosphere 2 is a science and engineering wonder! It is a great place to show human's effort to recreate different ecosystems in controlled environments. Great learning experiences for kids and myself along with its history - something we won't be able to experience in other places.

    Michael G.

    We have never met a museum that we didn't love and Biosphere 2 delivers. What a checkered history it has, and it is now owned and operated by U of Arizona. The tour is self guided with the app on your phone. The walk is well marked, they make it very easy. We had our own headphones which was a real plus. Half of the tour is outdoors so be prepared, it was 92° on our day. Check out the documentary SPACE SHIP EARTH on AppleTV Even in the failure of the original concept, much good is happening here.

    Natalie S.

    We love the Biosphere and are considering getting an annual membership. It's about 50 minutes from the university and a great place to get away from Tucson for a few hours. The staff is always willing to answer questions and make sure you are following the correct path. This list recent visit we added on the $12 tour of the lung. We were able to go below the main level of the biosphere and see a portion of the machinery that operates the system. Very much worth the adventure out there!

    Library
    Chris H.

    I took a tour while I was vacationing in Tucson. The different greenhouse biomes were fascinating and really cool to see. The living quarters and expensive tour of the library, not so much. I would recommend not paying extra for those guided tours, and just skip forward to the greenhouses. They've recreated different climates from all over the world, with thriving ecosystem and established trees and plants. There is even a 700,000 ocean tank that they are currently rehabilitating in order to replant corals on the reef.

    Emily S.

    Great experience!!!! Learned so much about the history and research and love that it's still being used for research today. We opted to book the optional/additional lung and library tours and glad we did! Got to see really cool features and functions in person which was way better than just reading about them :) very clean all throughout and knowledgeable/friendly staff. Wish we could eat the fruit that was growing inside!

    Martha C.

    We were excited to take our 11 year old granddaughter to the Biosphere 2. The weather was perfect. My granddaughter was so interested in everything. The self guided tour was amazing.

    Biospherian library exterior
    Lexi S.

    I'm from Tucson and hadn't been to Biosphere 2 until recently; I've officially found a new favorite place to take family when in town. The campus is beautiful and features a self-guided walking tour. I took about an hour and fifteen minutes to walk through start to finish and listen to some of the tour, which according to their website is exactly how long they expect people to visit. And while I didn't use it, there is also an accessible route to the different areas. My visit was kind of impromptu, and I went wearing ballet flats and a sundress. While I wouldn't recommend this, you can take the tour at your own pace so this was not an issue. In addition to good shoes, I would make sure you're well equipped with water and sunscreen. A lot of the tour is outside and you're subject to our Sonoran desert. If you like The Martian, The 100, or Lost, look no further - Biosphere 2 feel like you've been immersed into an unreal science fiction fantasy.

    Talisa M.

    This is truly such a unique and must try experience. I'm in awe to this day of what I've seen here and learned. It's a fairly easy experience to have, plenty of accessible spaces. The story and education behind it all is really impressive, it continues to be a work in progress of new and old projects coming through. I'm excited by the development. The views and feel of the spaces themselves are really so great, it's hard to explain how unique it is to travel through the Biosphere. A heads up to download the app entirely before and/or there before walking if you'd like to have the audio and videos available for viewing during the walk around.

    Christina M.

    Biosphere has been on my list of places to check out for a while now. We had family visiting from Texas and they wanted to go, so this was the perfect opportunity. Overall, it's 4 stars for me simply due to the experience of that day. The weather wasn't great. Not biospheres fault. Just nature. And, actually I'm glad it was pouring rain, we always need more moisture is AZ. It just made for a wet and cold day walking around the property. The tour takes about 60-90 minutes. Self guided tour requires you to download the app. Cell signal is not good out there, they have wifi in the building. The tour is half inside and half outside. They have different areas you can visit such as the LEO (landscape evolution observatory), mangrove, ocean, desert, and rainforest. I can imagine on a nice day, it's great to walk around outside. The area I enjoyed most was the desert since it's not like our desert here in AZ, it's more the type of desert region found in Baja Mexico. It was lush, green, with flowers. The ocean area is neat too. The rainforest was cool, but a bit of let down, you can walk in and look at it, but can't walk through it. Open for Tours Monday-Sunday 9am-4pm Adult $27, Senior $25, Child (5-17) $15 Closed Thanksgiving and Christmas Day We went on a Friday and there were plenty of people visiting but didn't feel crowded.

    food section
    Lauren F.

    this was a great experience. it is a little bit of a drive but once you arrive there is a large parking lot. it is a self guided tour that you can hear through a downloaded app on your phone. there are two extra tours you can sign up for: the lungs tour and the library tour. we did the lungs tour after we walked through the full experience on our own. It is quite. a bit of walking in different habitats from humid to hot and dry, so bring layers. we learned a lot and our favorite part was the lung tour. our tour guide was claudio and he has been working at the site since the first experiment. will definelty be returning

    Zan L.

    Visiting Tucson for the day so we decided to stop by the biosphere on our way down from Scottsdale. We are so happy that we did so! It's honestly a really fun experience. The price is very fair and it is a self-guided tour. They do offer guided tours as well, however, we chose to do the self-guided. You download an app, and at each stop (about 115 of them) the app tells you more about each location. You start outside to get views of the exterior and then you move into the desert dome, after that you head into the ocean dome and end in the jungle dome. You can make it a quick stop or spend as much time as you'd like. It's open from 9am to 4pm and there is no set arrival time. The last tours are allowed in at 3:30pm so it's a really freeform type of experience. I would highly recommend to anyone.

    See all

    29 days ago

    Helpful 1
    Thanks 0
    Love this 1
    Oh no 0

    6 months ago

    Helpful 0
    Thanks 0
    Love this 0
    Oh no 0

    20 days ago

    Nice experience. Lots of learning opportunities. There is some walking through so be prepared but worth a visit

    Helpful 0
    Thanks 0
    Love this 0
    Oh no 0

    2 months ago

    Helpful 6
    Thanks 2
    Love this 3
    Oh no 0

    5 months ago

    Helpful 1
    Thanks 0
    Love this 1
    Oh no 0

    4 months ago

    Helpful 0
    Thanks 0
    Love this 0
    Oh no 0

    1 year ago

    Helpful 5
    Thanks 2
    Love this 5
    Oh no 0

    1 year ago

    Helpful 0
    Thanks 0
    Love this 1
    Oh no 0

    5 months ago

    Helpful 2
    Thanks 0
    Love this 0
    Oh no 0

    1 month ago

    Helpful 0
    Thanks 0
    Love this 0
    Oh no 0
    Photo of Carrie K.
    1
    130
    171

    3 months ago

    Helpful 0
    Thanks 0
    Love this 0
    Oh no 0

    1 year ago

    Helpful 1
    Thanks 1
    Love this 2
    Oh no 0

    1 year ago

    Helpful 1
    Thanks 0
    Love this 0
    Oh no 0

    2 years ago

    Helpful 5
    Thanks 2
    Love this 2
    Oh no 2
    Photo of Brandon T.
    770
    60
    69

    5 months ago

    Highly recommend visiting the Biosphere 2, this is such an incredible piece of science.

    Helpful 0
    Thanks 0
    Love this 0
    Oh no 0

    2 years ago

    Helpful 3
    Thanks 3
    Love this 3
    Oh no 0

    2 months ago

    Helpful 0
    Thanks 0
    Love this 0
    Oh no 0

    2 years ago

    Helpful 5
    Thanks 0
    Love this 3
    Oh no 1

    9 months ago

    Helpful 0
    Thanks 0
    Love this 0
    Oh no 0

    1 year ago

    Helpful 0
    Thanks 0
    Love this 0
    Oh no 0

    3 years ago

    Helpful 2
    Thanks 0
    Love this 2
    Oh no 2

    4 years ago

    Helpful 5
    Thanks 0
    Love this 5
    Oh no 0

    1 year ago

    Helpful 0
    Thanks 0
    Love this 0
    Oh no 0

    4 years ago

    Helpful 4
    Thanks 0
    Love this 6
    Oh no 0

    1 year ago

    Helpful 0
    Thanks 0
    Love this 0
    Oh no 0

    2 years ago

    Helpful 1
    Thanks 1
    Love this 3
    Oh no 0

    3 years ago

    Helpful 0
    Thanks 0
    Love this 2
    Oh no 0

    5 years ago

    Helpful 4
    Thanks 0
    Love this 1
    Oh no 2
    Photo of pam m.
    0
    22
    17

    1 year ago

    Helpful 1
    Thanks 0
    Love this 0
    Oh no 0
    Photo of Beth L.
    58
    140
    560

    4 years ago

    Helpful 3
    Thanks 0
    Love this 3
    Oh no 0

    3 years ago

    Helpful 0
    Thanks 0
    Love this 0
    Oh no 0

    3 years ago

    Helpful 0
    Thanks 1
    Love this 0
    Oh no 1

    5 years ago

    Helpful 4
    Thanks 0
    Love this 0
    Oh no 0

    2 years ago

    Everyone should see the Biosphere2. Interesting human experiment as well as environmental effort.

    Helpful 0
    Thanks 0
    Love this 0
    Oh no 0

    2 years ago

    Helpful 0
    Thanks 0
    Love this 0
    Oh no 0

    2 years ago

    Helpful 0
    Thanks 2
    Love this 1
    Oh no 1

    3 years ago

    Helpful 8
    Thanks 0
    Love this 0
    Oh no 0
    Photo of Susanne C.
    4
    104
    107

    3 years ago

    Helpful 0
    Thanks 0
    Love this 0
    Oh no 0

    3 years ago

    Helpful 1
    Thanks 0
    Love this 0
    Oh no 0

    5 years ago

    Helpful 3
    Thanks 0
    Love this 2
    Oh no 0

    Page 1 of 8

    Ask the Community - Biosphere 2

    Can you bring a camera into the biosphere?

    Hello David H. Yes cameras are permitted inside Biosphere 2.

    View All 2 Questions

    Review Highlights - Biosphere 2

    There isn't a lot to see and do in Tucson but this was one of the best educational things I've toured.

    Mentioned in 44 reviews

    Read more highlights

    You might also consider

    Biosphere 2 - museums - Updated May 2026

    Loading...
    Loading...
    Loading...