City Nature Challenge

Join us for the City Nature Challenge at Lobos Creek! 

Celebrate the City Nature Challenge and Earth Week by helping to document the diversity of life springing up at Bon Tempe's recent prescribed burn site. Led by local botanists and experts from State Parks, we will document all of the life we encounter using iNaturalist.

Join us for the City Nature Challenge at Lands End! 

Explore El Polin Spring in the Presidio with us for a naturalist adventure and celebration of biodiversity! A bioblitz is a quick, intense survey of the species present. Hone your observation skills, become a field biologist for the day, and enjoy some nature in the city and friends!

Get ready for City Nature Challenge by joining this introductory webinar, including how to use the iNaturalist app and website for basic and more advanced tasks.

Join us at Ring Mountain Open Space Preserve for a naturalist adventure and celebration of biodiversity!

Come out for an afternoon of discovery and exploration of the natural world at Rancho Corral de Tierra!