City Nature Challenge: San Diego

Help San Diego win the 2018 City Nature Challenge

City Nature Challenge, which takes place from April 27-30, 2018, is a worldwide competition to see which city can make the most observations of their local plants and animals over a 4-day period. And San Diego is one of only 35 biodiversity hotspots in the world, so we should have this in the bag!

The global event is organized by Natural History Museum of Los Angeles and California Academy of Sciences, and The Nat is spearheading our local effort. The goal is to document as many species as possible via your smartphone. The event begins Friday, April 27 at 12 AM PT and ends Monday, April 30 at 11:59 PM PT.

Crowdsource for science!

You can participate on your own by uploading your photos and obervations of wildlife in your own neighborhood--or wherever you might be in the county that weekend. Are you a social butterfly? If so, we welcome you to participate in one of the many City Nature Challenge programs taking place around the county:

The Museum will announce the tallied results on Friday, May 4.

We're continually adding events, so keep checking back for an updated event list. In the meantime, want to learn more about becoming a citizen scientist and meet some of our researchers who help identify the plants and animals you observe? Join us for our Nat Talk on April 17.

How to contribute

We'll be asking participants to upload their photos and observations to iNaturalist. Not familiar with the app? Not to worry, it’s super user-friendly. All you have to do is:

  1. Download the free iNaturalist app to your Android or iPhone
  2. Join the 2018 City Nature Challenge: San Diego iNaturalist project
  3. Take photos from April 27-30 to make observations of wild plants and animals in San Diego (in your backyard, at a park, etc.)
  4. Upload your photos to iNaturalist
  5. Learn more as the iNaturalist community helps identify your observations

Want to stay involved past this event? Learn more about The Nat’s ongoing citizen science projects.

Partner with us

Are you a nature-based or outdoor organization that wants to get involved in partnering with us? Learn more about hosting your own event.

Host an event