Biosphere 2 presents the EarthFest 5K Run/Walk

Sat April 18, 2020 Oracle, AZ US 85623 Directions

Biosphere2 EarthDay 5k

$25 9:00AM MST - 8:00PM MST
465 spots left. Price increases after February 20, 2020 at 11:59pm MST
Race Website

Additional race information can be found at

32540 S. Biosphere Road
Oracle, AZ US 85623

Join us for an Inaugural event to bring awareness to Biosphere 2, which is tucked in the foothills on the north side of the beautiful Catalina Mountains. We're working out the details in partnership with the Biosphere 2, the University of Arizona, and our friends at Proper Villains.

All race registrants will receive free entry to the world-famous Biosphere2, plus a race souvenir, race shirt, race pins, and entry to EarthFest 2020 day Events on April 18th. These events include a farmer's market, beer garden, food vendors, day concerts and other educational festival events. 

The event is a fundraiser for the Biosphere2's Ocean Reef Lab.  

Tentative Schedule

7:00 - 7:45 Race day registration and packet pick up

8:00 Start time for EarthFest 5k Run/Walk

9:30 Awards

Ongoing Earth Day Festival, with farmer's market, exhibits. beer garden, and more.  All registrants can visit Biosphere2 on their own -- no need for a formal tour!


Race Contact Info

If you have any questions about this race, click the button below.


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