Under the guidance of the CA Department of Public Health and San Diego County’s Public Health Officer, 12 San Diego Public Library locations are open for limited in-person services Monday – Saturday, 9:30 am to 5:30 pm and will be closed from 1-2 pm for cleaning.  Online library servicesContactless Holds Pickup, and all book drops are available to the public. Find specific information on operations.


San Diego

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The City Nature Challenge 2021 is a worldwide collaboration to document as many species of plants, insects, and animals as we can find in a four-day period from April 30 to May 3, 2021. This challenge is a great opportunity to get outdoors and learn more about our local environment. San Diego is one of the most bio-diverse regions in the contiguous United States so there is no shortage of wildlife to be seen! You may even discover a new species! Due to the COVID-19 pandemic, participants are urged to carefully follow current public health guidelines provided by our local government.


How to Participate

Download the iNaturalist app from the App Store or Google Play.
  • STEP 1: Find wildlife anywhere in San Diego County.
  • STEP 2: Take photos of wild plants & animals.
  • STEP 3: Share your observations in the iNaturalist app.
  • STEP 4: Help identify what everyone found from May 4 – May 9, 2021.


iNaturalist How-To Videos

Ideas on How You Can Participate

Explore your home or yard
  • What can you find by looking outside your windows?
  • What are the wild plants growing in your yard? (Hint: even weeds counts!)
  • What insects or other creatures can you find in your gardens?
  • What observations can you find along the sidewalk?
Explore your neighborhood
  • Take a walk and locate other organisms that live in your neighborhood
  • Look up! You can spot birds and insects in trees, on top of buildings, on telephone poles, etc.
  • Look down! Find insects and other creatures crawling on the ground, in the dirt, underneath leaves, etc.
  • Visit your local park, beach, or hiking trail. Look in the grass, on plants, under benches and tables, up in the trees, and in the sky – how many different species will you find?
There’s no need to know what species you’re photographing, the iNaturalist community will identify them for you – that’s part of the fun!
Collage image of adults and children exploring nature
The San Diego Natural History Museum logo              iNaturalist logo