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Biosphere 2

32540 S Biosphere Rd, Oracle, AZ 85623 · Oracle, AZ

Why you should go…

Biosphere 2 is an Earth-systems science research facility in Oracle, Arizona, owned and operated by the University of Arizona since 2011. Visitors take a self-paced tour using a smartphone app, exploring the enclosed rainforest, ocean and desert biomes over about 75 minutes. It is open daily from 9am to 4pm year-round except Thanksgiving and Christmas.

  • #science
  • #museum
  • #research
  • #tour
  • #family

Good to know

General museums guidance

Habits that pay off across this whole category, not rules for this one venue. Always check the official site for the specifics.

  • Check the special exhibition separately

    Touring shows usually carry their own ticket and their own opening hours, listed apart from general admission.

  • Look for the free window

    Many museums run community days, member evenings, or discounted late openings. It is worth a look before you pay full price.

  • Travel light through the door

    Large bags and backpacks often have to go to a coat check, and lines for it move slowly at opening.

  • Weekday mornings beat weekend afternoons

    School groups clear out by early afternoon midweek, while weekends stay busy from late morning on.

What's around here?

The closest stops to Biosphere 2, ordered by straight-line distance. A few more like it, plus some different kinds of fun so you can build a full day.

  • Sport & Outdoor
    Family Favorite

    Tucson Botanical Gardens

    Under $25

    Wander themed gardens and desert plant collections across five acres in central Tucson.

    26 mi awaySwitch it up: Sport & Outdoor

  • Attractions
    Quirky Fun

    Ghost Ranch Exotics

    $50+

    A private exotic animal ranch near Tucson offering guided capybara and animal encounters.

    28 mi awaySwitch it up: Attractions

  • Attractions
    Family Favorite

    Reid Park Zoo

    Under $25

    A 24-acre city zoo in central Tucson with more than 500 animals from elephants to jaguars.

    29 mi awaySwitch it up: Attractions

  • Sightseeing
    Local Gem

    Southern Arizona Heritage and Visitor Center

    Free

    Tucson's official downtown visitor center, offering maps, event info and travel advice for exploring Southern Arizona.

    29 mi awaySwitch it up: Sightseeing

  • Attractions
    Iconic

    Kitt Peak National Observatory

    $25–$50

    Tour working telescopes and join nighttime stargazing programs at the world's largest collection of optical telescopes.

    29 mi awaySwitch it up: Attractions

  • Museums
    Family Favorite

    Arizona-Sonora Desert Museum

    $25–$50

    A combined zoo, aquarium, botanical garden and natural history museum devoted to the plants and animals of the Sonoran Desert.

    35 mi awayMore like this