

# Event Details

- **Event Name**: Earth Day 5k at the Biosphere 2, April 18, 2026
- **Event Start and End Date**: Sat, 18 Apr, 2026 at 08:30 am (-07:00)
- **Event Description**: Looking for a fun way to explore one of the most popular tourist destinations in Arizona?

Celebrate Earth Day and join Run Tucson on Saturday morning, April 18, 2026 for the TMC Earth Day 5k Run/Walk entirely on the grounds of the world-famous Biosphere 2.

Run the Desert . . . then visit a rain forest, view an ocean reef, and wander through savanna grass lands . . . all in one day! 

Registration and Updated Race Info Here: 

https://runsignup.com/Race/AZ/Oracle/Biosphere2EarthRun5k

Whether you’re a seasoned athlete or just looking for a fun way to get some exercise, you’re sure to enjoy yourself at the world-famous Biosphere 2, nestled at the base of the majestic Catalina Mountains, north of Tucson. The rolling 3.1 mile course is perfect for racing and walking, with gorgeous desert and mountain views and a start and finish on the beautiful Great Lawn.  
After the 5k, you can relax, listen to live music, snag some food, and enjoy other fun activities, so make sure to stick around to socialize and have some fun.

All registrants receive free entry to the Biosphere 2 informative tour of the renowned research facility, with an exclusive peek into the inner workings of the Biosphere 2, a wild world of wetlands, rainforests, grasslands, fog deserts, and the big blue ocean. It’s like a backstage pass to nature’s superstar habitats!

The TMC Earth Day 5k is raising funds for the Ocean Reef research project, learning how to grow ocean reefs in a changing climate.
- **Event URL**: https://allevents.in/oracle/earth-day-5k-at-the-biosphere-2-april-18-2026/200029544633353
- **Event Categories**: sports, music, marathons, workshops, live-music, entertainment
- **Interested Audience**: 
  - total_interested_count: 14

## Ticket Details

- **Ticket URL**: https://runsignup.com/Race/AZ/Oracle/Biosphere2EarthRun5k?utm_source=AllEvents.in&utm_medium=event-discovery-platform&utm_campaign=oracle-events

## Event venue details

- **city**: Oracle
- **state**: AZ
- **country**: United States
- **location**: Biosphere 2
- **lat**: 32.580551667022
- **long**: -110.8486773133
- **full address**: Biosphere 2, 32540 S Biosphere Rd,Oracle, Arizona, United States

## Event gallery

- **Alt text**: banner
  - **Image URL**: https://cdn-az.allevents.in/events3/banners/b4e479f206890490fe619a4db4c0c83e69e3a0da1fa85b65a014e5be2d23698c-rimg-w700-h467-dcbed9f1-gmir?v=1774456023
- **Alt text**: thumbnail
  - **Image URL**: https://cdn-az.allevents.in/events3/banners/57bf03d967c14578688b0f2bb7afd587a48fa7e23af83f7f5692ae264e1d814c-rimg-w300-h300-dcbfdaf1-gmir?v=1774456023

## FAQs

- **Q**: When is the event happening?
  - **A:** Sat, 18 Apr, 2026 at 08:30 am (-07:00)
- **Q**: Where is the event happening?
  - **A:** Biosphere 2, 32540 S Biosphere Rd,Oracle, Arizona, United States
- **Q**: What type of event is this?
  - **A:** sports, music, marathons, workshops, live-music, entertainment
- **Q**: Where can I find ticket details about Earth Day 5k at the Biosphere 2, April 18, 2026 ?
  - **A:** You can find ticket details about this event on AllEvents.

## Structured Data (JSON-LD)

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        "image": "https://cdn-az.allevents.in/events3/banners/b4e479f206890490fe619a4db4c0c83e69e3a0da1fa85b65a014e5be2d23698c-rimg-w700-h467-dcbed9f1-gmir?v=1774456023",
        "startDate": "2026-04-18T08:30:00-07:00",
        "url": "https://allevents.in/oracle/earth-day-5k-at-the-biosphere-2-april-18-2026/200029544633353",
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        "description": "Looking for a fun way to explore one of the most popular tourist destinations in Arizona?\n\nCelebrate Earth Day and join Run Tucson on Saturday morning, April 18, 2026 for the TMC Earth Day 5k Run/Walk entirely on the grounds of the world-famous Biosphere 2.\n\nRun the Desert . . . then visit a rain fo"
    }
]
```