In order to use RunSignup, your browser must accept cookies. Otherwise, you will not be able to register for races or use other functionality of the website. However, your browser doesn't appear to allow cookies by default.
If you still see this message after clicking the link, then your browser settings are likely set to not allow cookies. Please try enabling cookies. You can find instructions at https://www.whatismybrowser.com/guides/how-to-enable-cookies/auto.
Additional race information can be found at http://www.runtucson.net.
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.
7:00 - 7:45 Race day registration and packet pick up
8:00 Start time for EarthFest 5k Run/Walk
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!
If you have any questions about this race, click the button below.Questions?