Biosphere 2 is open every day (except Thanksgiving and Christmas). Biosphere 2 is open from 9am-4pm (last entry at 3:30pm). It is not necessary to select a time for entry.
The Biosphere 2 Experience App Guided Tour 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 one-way path around the exterior and through the human habitat and wilderness areas of Biosphere 2!
The Biosphere 2 Experience will take approximately 1 hour 30 minutes to complete.
Prior to arrival please download the Biosphere 2 App available on Google Play or the App Store. The app contains pre-visit material and all on-site tour content.
A full list of Frequently asked questions can be found on our website.
At this time discounts cannot be redeemed online. To use a coupon/discount please purchase tickets onsite.
All sales are non-refundable; however, we will gladly exchange the date of your ticket.
If an error or discrepancy has occurred with your online purchase or donation, please contact us at 520-621-4800.