04/25/2026
The City Nature Challenge is all week. Nature is everywhere, even in the busiest city. Every observation counts and you can participate from anywhere! Whether you’re out on the trail, exploring your neighborhood, or even in your own backyard, you’re helping document the incredible biodiversity of our region.
Here’s how to get involved:
1. Download iNaturalist App (100% free, nonprofit, and community-powered).
2. Find your local wild nature.
3. Take pictures - they don’t have to be fancy or perfect!
4. Share your photos on iNaturalist to get identification help and contribute to science.
Need a place to start?
🔍 Take on the Species Challenge: upload an arthropod (insects, spiders, and more!) to iNaturalist app
🎯 Try this CNC Bingo Card: spot a saguaro, a roadrunner, something fragrant, and more!
Go at your own pace, explore what’s around you, and most importantly, have fun with it
📲 Don’t forget to upload your observations to iNaturalist so they count!
The City Nature Challenge is organized by and Thank you to and everyone participating in the City Nature Challenge 💚