Ticket Prices & Purchase

  • Biosphere 2 recommends that guests wear comfortable walking shoes.
  • Weather can be unpredictable in the winter and spring – layers are recommended.
  • No pets allowed.
  • Wheelchairs, baby strollers and walkers are not allowed on the tour due to stairs.
  • Baby "backpacks" and back slings cannot be used – babies and children must be carried in front.
  • No food or drink is allowed on the premises except for bottled water and items needed for baby care.

Admission Fees

  • Adults  $20
  • Military  $18
  • Children ages 6 through 12  $13
  • UA student, faculty or staff with UA CatCard  $10

Operating Hours

  • Open every day of the year, except for Thanksgiving and Christmas Day
  • 9:00 a.m. to 4:00 p.m.

Group Rates

  • Private groups of 20 or more
  • K-12 student tours – class size of 20 or more  $10 per student
  • Please call 520-838-6192 or email groups@biosphere2.org for reservations of groups of 20 or more.