We noticed that you're using an unsupported browser. The TripAdvisor website may not display properly.We support the following browsers:
Windows: Internet Explorer, Mozilla Firefox, Google Chrome. Mac: Safari.

Biosphere 2

Open Now: 9:00 a.m. - 4:00 p.m.
Open today: 9:00 a.m. - 4:00 p.m.
ADMISSION TICKETS (1)
General Admission Biosphere 2
From US$21.00*
Why Book on TripAdvisor?
  • Tour highlights & full itinerary
  • Easy online booking
  • Lowest price guaranteed
More Information
ADMISSION TICKETS (1)
General Admission Biosphere 2
From US$21.00*
Why Book on TripAdvisor?
  • Tour highlights & full itinerary
  • Easy online booking
  • Lowest price guaranteed
More Information
804
All photos (804)
Full view
Certificate of Excellence
Traveller Overview
  • Excellent47%
  • Very good33%
  • Average14%
  • Poor4%
  • Terrible2%
Travellers talk about
“living quarters”(52 reviews)
“guided tour”(93 reviews)
About
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.
Open Now
Hours Today: 9:00 a.m. - 4:00 p.m.
See all hours
Suggested duration: 2-3 hours
Contact
32540 S Biosphere Rd, Mile marker 96.5, Oracle, AZ 85623-7019
Website
+1 520-838-6200
Call
Improve This Listing
Reviews (1,048)
Filter reviews
1,021 results
Traveller rating
470
340
145
42
24
Traveller type
Time of year
LanguageEnglish
More languages
470
340
145
42
24
Show reviews that mention
All reviews living quarters guided tour research facility self sustaining climate change air pressure columbia university earth science scientific research interesting place coral reef behind the scenes self guided answer questions worth the trip tucson area unique experience
FilterEnglish
Updating list...
1 - 10 of 1,021 reviews
Reviewed yesterday via mobile

It's a very interesting place. Tour was very educational for kids and adults. Plan to spend about 2.5 hours there. Moderate walking involved. Tour guide seemed very tired and wasn't really interested in taking questions.More

Date of experience: December 2018
Thank Quest304580
jadamsb2, Manager at Biosphere 2, responded to this reviewResponded today

Hello Quest304580, Thank you for visiting Biosphere 2 and providing feedback about your experience. It is comments such as yours that helps us to continue to improve the experience for all our visiting. If there are questions you did not get answered, please do not...More

Reviewed 3 days ago

Originally a laboratory for astronauts or others in long-term isolation, Biosphere was intended as a self-contained living space for eight people for two years. It didn't work out so well, but the buildings remain, and it's amazing to see. I wish more of the original...More

Date of experience: October 2018
Thank DesertDan77
Reviewed 4 days ago via mobile

Wasn't really sure what it was until we got there and took the tour. Tour takes about 1 1/4 hours - very worth the time. Quite the experiment undertaken there.

Date of experience: January 2019
Thank John J
jadamsb2, Manager at Biosphere 2, responded to this reviewResponded today

Dear John J. Thank you for visiting Biosphere 2, I am glad to hear you found the visit worthwhile. We hope to see you again in the near future. Regards, John Adams

Reviewed 1 week ago

This a quick drive from Tucson and about 1.5 hrs from Phoenix. We spent 3 hours here and it felt like 1 hour. Arrive about 30 minutes before the hour to get in the tours that start on the hour. You have time to explore...More

Date of experience: January 2019
1  Thank Julie H
Reviewed 2 weeks ago

This place is amazing. Before you go, read the web site about the construction and the two experiments with sequestered living. It's a great story and an engineering feat.

Date of experience: December 2018
Thank FlyinSOB
jadamsb2, Manager at Biosphere 2, responded to this reviewResponded 1 week ago

Thank you for visiting and taking the time to write about your experience. If you visit in the future or others reading this plan to visit, in addition to the website we also offer a History Tour that details the human missions. Regards, John Adams

Reviewed 2 weeks ago

We did the Under the Glass Tour and the History Tour, we enjoyed both tours very much. This place is very interesting and it is nice to see that studies and experiments are still happening here. It is important that we continue to learn to...More

Date of experience: October 2018
1  Thank KeKeGram
Reviewed 2 weeks ago

Various tours to meet your needs. We had 4 children, so we chose the family tour. Next time we'll ask for the history tour. (There were 3 small families on our tour, and the history tour had about 50 people.) Interesting, informative, varied. Can spend...More

Date of experience: December 2018
Thank Mir2001
jadamsb2, Manager at Biosphere 2, responded to this reviewResponded 1 week ago

Hello Mir2001, Thank you for bringing your family to visit Biosphere 2. The family tour is something we recently added. I am glad to hear it was well formatted for your children and they enjoyed the experience. We hope to see you in the near...More

Reviewed 2 weeks ago via mobile

My husband, daughter (18) and son (16) went on the Under the Glass tour (1 hr 15 min long). We all were so glad we went! Tip - get there early and plan to be there about 2 to 3 hours. We got there at...More

Date of experience: December 2018
Thank staceymc54
jadamsb2, Manager at Biosphere 2, responded to this reviewResponded 1 week ago

Hello Staceymc54, We too are glad that the crowds did not sway your desire to tour our facility. It is great to hear you enjoyed the Under the Glass Tour, our main tour. This tour is a must do for all visitors! Thank you for...More

Reviewed 2 weeks ago via mobile

This is a good tour, next time, if there is one, we should carve out a lot more time to visit the property

Date of experience: December 2018
Thank G7010FCrobertb
jadamsb2, Manager at Biosphere 2, responded to this reviewResponded 1 week ago

Thank you for visiting and we do hope you will return in the future. Regards, John Adams

Reviewed 2 weeks ago via mobile

We visited on Dec. 27 and it was pretty busy, which was exciting to see! You’re on a dedicated tour so we had an hour to spend before that started and grabbed a snack in the cafe. The tour is in and out of buildings...More

Date of experience: December 2018
Thank CJinthemtns
jadamsb2, Manager at Biosphere 2, responded to this reviewResponded 1 week ago

Hello CJinthemtns, Thank you for visiting and taking the time to provide this feedback. I am sorry to hear that your guide was not engaging and you only received partial information about the biomes and ongoing research. I would be happy to answer any questions...More

View more reviews
Nearby
Nearby HotelsSee all nearby hotels
The Triangle L Ranch
18 reviews
7.68 km away
Miraval Arizona Resort & Spa
1,573 reviews
8.60 km away
Catalina Inn
67 reviews
12.04 km away
Holiday Inn Express Oro Valley - Tucson North
168 reviews
21.08 km away
Nearby RestaurantsSee all 9 nearby restaurants
Casa Rivera's Taco Express
55 reviews
6.86 km away
Nonna Maria's Pizza
35 reviews
6.97 km away
DE Marco's Pizzeria & Italian
15 reviews
6.92 km away
The Preserve at Saddlebrooke
64 reviews
3.32 km away
Nearby AttractionsSee all 9 nearby attractions
Arizona Zipline Adventures
219 reviews
13.67 km away
Mt. Lemmon SkyCenter Observatory
246 reviews
16.26 km away
The Gaslight Music Hall
53 reviews
17.18 km away
Questions & Answers
Ask a question
Michael B
January 2, 2019|
AnswerShow all 13 answers
Response from Vernon A | Reviewed this property |
There was a few flights of stairs but the facility was accommodating as well. Elevators were nearby and tour guides would wait for those who preferred to use them. There was one elderly lady who struggled with the... More
1
Vote
brandonnlc
November 19, 2018|
AnswerShow all 8 answers
Response from 1952Mike | Reviewed this property |
I did not need to use wifi so I am not sure.
0
Votes
TJL14DML
February 5, 2018|
AnswerShow all 2 answers
Response from nrretreat | Reviewed this property |
Adults $20 Seniors $18 Military $18 Children ages 6 through 12 $13
1
Vote