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
  • Non-UA student, faculty or staff with college ID  $15

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

Pricing for Group Tours of 20 participants or more:

  • K-12: $10.00 per student (Low Season July-December) $15.00 applies to all accompanying adults/chaperones within the 10:1 ratio.

  • K-12: $12.00 per student (High Season January-June) $17.00 applies to all accompanying adults/chaperones within the 10:1 ratio.

  • Any additional adults or family members above the minimum required chaperones must pay the separate applicable admission fee and be assigned to a regularly scheduled public tour. Please note – upon arrival, we ask for ONE payment for the entire group.

  • Please call 520-838-6192 or email BIO2-GROUP@email.arizona.edu for reservations for groups.