Biosphere 2

Located across a 3-acre research facility, Biosphere 2 (B2) recreates five of earth's biomes--the ocean, wetlands, tropical rainforest, Savanna grassland, and fog desert--enclosed under glass domes. Included in your admission is access to the Under the Glass guided tour of Biosphere 2, which is offered throughout the day on a first-come, first-serve basis. Guests on the tour will get to experience the Biosphere as they wander through the rainforest, walk across the ocean overlook, explore the coastal fog desert, and travel through the underground technosphere, descending into one of the amazing "lungs" - an engineering marvel - that helped moderate air pressure in the sealed B2 environment.

  • Accessible
  • Family Friendly
  • Parking Available
  • Location
  • 32540 S Biosphere Rd
  • Tucson, Arizona 85739
  • Hours9 a.m. - 4 p.m.

Listings on are intended to serve as a guide for visitors to and within Arizona, and all information is provided and maintained by each business owner or representative. Listings do not imply an official Arizona Office of Tourism endorsement, recommendation, favoring, or guarantee of products or services advertised. We highly encourage visitors to conduct their own research and assessments.


Cities & Regions

From the abundance of Saguaro cactuses and unique wildlife in the Sonoran Desert to the high country and forests of the White Mountains to the breathtaking Grand Canyon, Arizona’s regions are full of experiences that don’t disappoint.