City Nature Challenge Events
Check back soon for more updates on City Nature Challenge 2025!
Get outside and photograph nature! Go out on your own or with others. You can even join our partners at the events listed below. Be sure to check back in as we will continue to add new events.
Can’t get outside? No problem. Take part from the comfort of a desktop computer and help identify the plants and animals people observe with their cameras. Find more information on how to identify observations.
We are encouraging everyone to follow recommended protocols related to staying healthy, keeping safe, and staying respectful of wildlife and wild spaces.
Friday, April 25
- South Bay BioBlitz and Restoration at Emory Cove
Saturday, April 26
- City Nature Challenge BioBlitz: Exploring the Estuary
- BioBlitz at Crestridge Ecological Preserve
- Bilingual BioBlitz at Tijuana Slough
- 9 AM–11 AM, Saturday, April 26
- Bilingual English/Spanish & ADA Accessible
- Hosted by the San Diego Natural History Museum and San Diego Bird Alliance
- Creek to Bay BioBlitz
- 9 AM–12 PM, Saturday, April 26
- Hosted by San Diego Canyonlands and I Love a Clean San Diego
- Nature Lab at the Library
- 10 AM–1 PM, Saturday, April 26
- Bilingual English/Spanish & ADA Accessible
- Hosted by Tijuana Slough National Wildlife Refuge, San Diego Audubon, and Fauna del Noroeste
- BioBlitz at Cabrillo National Monument
- Paradise Hills Native Garden Nature Challenge
- 11 AM-1 PM, Saturday, April 26
- Hosted by Paradise Gardeners
- Nature Hike: Dos Picos County Park
- 10 AM–12 PM, Saturday, April 26
- Hosted by San Diego Natural History Museum's Canyoneers
- Afternoon BioBlitz at Elliott Chaparral Reserve
- Self-guided observations:
- Head outside and use the iNaturalist app to make observations of all the wild plants and animals you encounter in San Diego County. Check out the San Diego County City Nature Challenge project to take the challenge! New to the app? Check out our tutorial here.
Sunday, April 27
Monday, April 28
- Self-guided observations–San Diego County
- Head outside and use the iNaturalist app to make observations of all the wild plants and animals you encounter in San Diego County. New to the app? Check out our tutorial here.
Be sure to check this page for updates. We will add events as they are scheduled.
Want to host an event? Contact our community science team.
Want to stay involved past this event? Learn more about The Nat’s ongoing community science projects.
