Biosphere 2

32540 S Biosphere Rd.,

PO Box 689

Oracle, AZ 85623


Biosphere 2 Experience

Silhouetted against the peaks and ridges of the majestic Santa Catalina Mountains the Biosphere 2 Experience will allow guests to follow a one-way path around the exterior and portions of the interior of Biosphere 2.  This fascinating, family-friendly experience will be guided by a tour app.  Please download the free app prior to arrival.

All visitors must have a ticket for entry, including free children and members. Passport holders bring your passport to the front gate for redemption and verification.

Ticket valid for 30 minutes from time printed on ticket.

Come visit the Biosphere 2 Center for a unique experience

Admission Fees



 Child (under 4)


 K12 Student (valid for children ages 5-17)


Senior (Ages 62 and above)


 Military Adult (Ticket for Military ID holder only. Must present ID at check-in.)


UA Cat Card (Discount valid for Cat Card Holder only. Must present Cat Card at check-in)


Biosphere 2 Member
(must present membership card at check-in. Only valid for members listed on the card.)

Operating Calendar

Open Daily

Closed Thanksgiving & Christmas Day

Operating Hours 9:00am – 4:00pm