Sightseeing

Biosphere 2

📍 32540 S Biosphere Rd, Oracle, AZ 85623, USA

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3.8/ 5.0

★★★★☆

Quick Facts

Location: USA
Category: Sightseeing
Duration: 2-3 hours
Opening Hours: Daily 9:00-16:00, closed Thanksgiving and Christmas
Ticket Price: Adult $25, Child (6-12) $15, includes tour
Address: 32540 S Biosphere Rd, Oracle, AZ 85623, USA
Coordinates: 32.5784, -110.8482

Introduction

Biosphere 2 is located at the foot of the Santa Catalina Mountains north of Tucson, Arizona, and is an Earth science facility owned by the University of Arizona. It was built between 1987 and 1991 with funding from billionaire Edward Bass. The 3.14-acre sealed glass complex was originally designed to simulate Earth's ecosystems, and in 1991 eight "biospherians" lived sealed inside for two years in an unprecedented ecological experiment. Now open to the public, Biosphere 2 features six biomes: tropical rainforest, ocean, desert, savanna, wetland, and agricultural zone. It is an important research base for climate change, ecosystems, and Earth science, and a unique scientific tourist attraction.

✨ Highlights

Glass Mega-Structure

3.14-acre sealed glass complex, an engineering marvel

Six Biomes

Tropical rainforest, ocean, desert, savanna, wetland, agriculture

Biospherian Experiment

Legendary 1991 experiment with 8 people sealed for 2 years

Rainforest Ecosystem

Man-made rainforest in sealed environment, climate research window

Ocean Simulation

Artificial ocean system for coral reef and marine ecology research

University of Arizona Operated

Top research institution, frontier Earth science base

🛈 Practical Info

→Duration：2-3 hours

→Address：32540 S Biosphere Rd, Oracle, AZ 85623

→Transport：About 45 minutes from Tucson via Oracle Road north

→Tour：Audio guides available, guided tours recommended

→Opening Hours：Daily 9:00-16:00, closed Thanksgiving and Christmas

→Ticket Information：Adult $25, Child (6-12) $15, includes tour

→Transportation：By car

💡 Tips

• Guided tours required to access sealed biome areas, self-tour areas are limited

• Glass structures are hot and humid, stay hydrated and use sun protection

• Tours depart every 30 minutes, advance reservation recommended

• Combine with Arizona-Sonora Desert Museum in Tucson

• Highly rewarding for those interested in ecology and climate change

• Free parking but remote location, bring your own water

FAQ

What are the opening hours of Biosphere 2?

Daily 9:00-16:00, closed Thanksgiving and Christmas

How much is the admission for Biosphere 2?

Adult $25, Child (6-12) $15, includes tour

Any practical tips for visiting Biosphere 2?

Guided tours required to access sealed biome areas, self-tour areas are limited Glass structures are hot and humid, stay hydrated and use sun protection