Unlock your inner naturalist with the City Nature Challenge in Fairfax County Parks! The City Nature Challenge, running April 26 – 29, is a worldwide phenomenon encouraging residents of all ages to take a closer look at the beauty of our natural world and spot and record as many species of plant and wildlife in our community as possible. 

Metropolitan areas from across the globe participate in the City Nature Challenge and compete to identify the most species within their local environment. This research helps populate a valuable trove of data to help better understand neighborhood habitats and enhance the effectiveness of stewardship efforts.

Participation is easy:

Step 1: Go outside with your smartphone and find any plant or animal

Step 2: Take a photo of what you find – taking note of the location

Step 3: Share your observations through the iNaturalist app

Do you prefer a guided adventure with some help in using iNaturalist? Join our staff at the Hidden Oaks Nature Center for a City Nature Challenge Walk on Sunday, April 28, from 1 to 2 p.m. This free event, suitable for all ages, offers a chance to explore local biodiversity under the guidance of a park naturalist and learn how to iNaturalist app to share this valuable information. Learn more and sign-up to participate at City Nature Challenge Walk. 

We need your keen eyes and enthusiasm to help us uncover the rich biodiversity of Fairfax County – both within our parks and around your neighborhood. Let's help the Washington DC Metro Area emerge victorious in this friendly challenge! For additional information about the City Nature Challenge, visit the City Nature Challenge website.