City Nature Challenge 2026
April 27, 2026 - 12:00 AM to 11:59 PM
City Nature Challenge San Diego County
April 24-27, 2026
How to participate in City Nature Challenge
It’s easy! You can go out on your own, join our partners at one of the many special events hosted remotely and around town, or find an event near you. All you have to do is:
- Download the free iNaturalist app to your Android or iPhone
- Join the City Nature Challenge 2026: San Diego County iNaturalist project
- Take photos of wild plants and animals in San Diego County from April 25–28
- Upload your photos to iNaturalist by May 4.
- Learn more as the iNaturalist community helps identify your observations.
- Watch the video, then come to Rose Creek and starting making observations.