TMC Earth Day 5K

The TMC Earth Day 5K at Biosphere 2 is a vibrant running event scheduled for April 19, 2025, in Oracle, Arizona. Participants can choose between a 5K run/walk and a children's 5K, all set against the stunning backdrop of the Biosphere 2 facility and the Catalina Mountains. The course features a mix of pavement and dirt paths, offering beautiful desert views.

After the race, attendees can enjoy live music, food trucks, and activities for children. The event also supports the Ocean Reef research project, promoting environmental awareness and conservation efforts. All registrants receive free entry to the Biosphere 2 tour. Visit the organization's website for the most recent information.