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Find Events

2025 City Nature Challenge Events

Connecting People and Nature

Two people stand together behind a fence, each holding a set of binoculars to their eyes.
COMMUNITY CONSERVATION The annual City Nature Challenge depends on community scientists and volunteers to observe and record plant and wildlife species. © Erich Schlegel

How to Participate

Find bioblitz events to attend and make observations, or join an iNaturalist project for your area and contribute your observations on your own. You don't have to attend an event to participate; observations can be made from your backyard, a local park or any other outdoor location in your area! See events and iNaturalist projects below. All observations should be made from April 25 - 28, 2025.

Coming Soon!

Stay tuned for a list of our 2025 events and projects.