Experience Biosphere 2

Under the Glass Tours

Biosphere 2 is located north of Tucson, Arizona at the base of the stunning Santa Catalina Mountains. This one-of-a-kind facility sits on a ridge at a cool elevation of nearly 4,000 feet and is surrounded by a magnificent natural desert preserve. Come experience the remarkable Biosphere 2 which Time Life Books named one of the 50 Must-See Wonders of the World. See why visitors from around the globe journey here for this unique adventure not found anywhere else. Discover real-time research on the future of our planet as it unfolds in the world's largest earth science laboratory.

The Biosphere 2 visitor center houses exhibits and multimedia displays along with a bookstore and cafe. Should you choose, your experience at Biosphere 2 is facilitated by an expert interpretive specialist who takes you inside and under the glass. The beautiful trail system takes you along a once-in-a-lifetime tour route of the 3+ acre research facility where you will smell our ocean and feel a tropical rainforest up close. In addition to escorting you through the upper biomes, your interpretive specialist takes you through the basement technosphere and into one of the amazing lungs that helped moderate air pressure in Biosphere 2's once-sealed environment. Your tour can include the underwater Ocean Gallery where you can explore the million-gallon ocean and its research value - including coral reef resilience. Before or after your guided tour, take time to enjoy the many different exhbits, programs, and events that are offered all season. The visit and guided tour provides an opportunity to appreciate and discuss important science in a friendly, informal setting. Your experience will be like no other!

Biosphere 2 is open every day of the year except Thanksgiving and Christmas. Visitors are welcome to arrive daily between 9:00 a.m. and 4:00 p.m. to explore the facility, exhibits, and grounds. Guided tours are available throughout the day - please arrive no later than 3:45 p.m. It is not necessary to book a reservation for groups with 20 people or less. Upon arrival you will be directed to our many exhibits and discovery opportunities, and assigned to one of the next available general tours. Pets are not allowed inside Biosphere 2 or on the grounds, service pets that are trained to do specific tasks are welcome. Do not leave pets unattended in vehicles.

Tour Schedule and Hours (including 2017 holiday hours)

Things to Know Before You Arrive - What to Expect and How to Prepare

Weekend Tours

In addition to our general tours, Biosphere 2 offers weekend tours perfect for families and history aficionados! Please arrive at least 15 minutes before the tour times listed below. 

History Tour

Ages: All ages
When: Every Saturday and Sunday
Time: 10am & 12pm (Ticket sales close 15 minutes before scheduled tour time) 

This 45-minute outdoor tour gives you an in-depth look into what it was like to be a crew member inside of Biosphere 2. The guided tour also focuses on the design & construction of Biosphere 2 in the early 1990's. The History Tour is offered every Saturday and Sunday at 10am and 12pm. The tour is $20 per person or a $5 add-on to a general tour.

Family Tour

Ages: All ages
When: Every Saturday and Sunday
Time: 11am & 1pm (Ticket sales close 15 minutes before scheduled tour time) 

This condensed, interactive tour is perfect for a family visit to Biosphere 2. Designed for families with children 12 and under, this 60-minute guided tour follows the general tour route and concludes with an optional hands-on activity in our Ocean Gallery. The Family Tour is offered every Saturday and Sunday at 11am and 1pm. Regular admission prices apply.

Specialty Tours NEW!

 

Biosphere 2 Landscape Evolution Observatory Tour

Ages: Suggested 12 to adult
Dates: Saturday, November 18, 2017 and Saturday, May 19, 2018
Time: 2-4pm

Get grounded! Join us for a behind-the-scenes-tour of our flagship Earth Science project, the Landscape Evolution Observatory (LEO). Experience LEO through the eyes and mind of a LEO researcher to get an in-depth introduction to this massive scale eco-hydrology and soil evolution experiment. Learn more and buy tickets.

Biosphere 2 Director's Tour

Ages: Suggested 12 to adult
Dates: Saturday, December 16, 2017, Saturday, February 17, 2018, Saturday, April 21, 2018
Time: 2-4pm

Get up close and personal with this must-see wonder of the world! A Biosphere 2 director will take you on a behind-the-scenes-tour of our iconic research and education facility. Hear in-depth stories, learn about research approaches and findings, and explore places other visitors don't get to see. Learn more and buy tickets.

Biosphere 2 Ocean and Marine Research Tour

Ages: Suggested 12 to adult
Dates: Saturday, January 20, 2018
Time: 2-4pm

Seas the day! Join us on an exciting behind-the-scenes-tour of our one-of-a-kind research ocean under glass. Experience this amazing marine ecosystem through the eyes and mind of a Biosphere 2 researcher for an in-depth introduction to this audacious experimental tool in the Arizona desert. Learn more and buy tickets.

Biosphere 2 Tropical Rainforest Tour

Ages: Suggested 12 to adult
Dates: Saturday, March 17, 2018
Time: 2-4pm

It's all about the rainforest! A Biosphere 2 scientist will take you on a behind-the-scenes-tour of our rainforest where we conduct experiments that link water, carbon, and energy for a richer understanding of how tropical forests respond to chemical and environmental changes. Learn more and buy tickets.