City Nature Challenge: San Diego
City Nature Challenge , which takes place from April 27-30, 2018, is a worldwide competition to see which city can make the most observations of their local plants and animals over a 4-day period. And San Diego composes part of one of only 35 biodiversity hotspots in the world, so we should have this in the bag!
The global event is organized by Natural History Museum of Los Angeles and California Academy of Sciences, and The Nat is spearheading our local effort. The goal is to document as many species as possible via your smartphone. The event begins Friday, April 27 at 12 AM PT and ends Monday, April 30 at 11:59 PM PT.
View a livefeed of results here .
Unlisted City Nature Challenge 2018: Which City Can Find the Most Nature?
Welcome to the 2018 City Nature Challenge!
Over 60 cities will be competing to see who can make the most observations of nature, find the most species, and engage the most people in the worldwide 2018 City Nature Challenge.
You can participate by uploading photos and observations of wildlife in your neighborhood--or wherever you might be in the county that weekend. Are you a social butterfly? If so, we welcome you to participate in one of the many City Nature Challenge programs taking place around the county.
Leading Up to the Challenge
- iNaturalist Training | Mission Trails Regional Park:
- Saturday, April 7, 10 AM - 1 PM
- Saturday, April 21, 10 AM - 1 PM
- iNaturalist Trainings |San Diego Public Library:
- Ocean Beach Library | Tuesday, April 10, 6-7 PM
La Jolla Library | Friday, April 13, 4-5 PM
Carmel Mountain Library | Wednesday, April 18, 4-5 PM
Tierrasanta Library | Saturday, April 21, 10-11 AM
San Diego Central Library | Wednesday, April 25, 3-4 PM
University Community Library | Thursday, April 26, 2-3:30 PM
Challenge Day 1 | Friday, April 27
Challenge Day 2 | Saturday, April 28
- Hike at Hollenbeck Canyon | Hike San Diego | Saturday, April 28, 8 AM – 11 AM
- Canyoneer Hike: Anza Borrego Desert State Park (Little Surprise Canyon) | Saturday, April 28, 8 AM
- Canyoneer Hike: Balboa Park (Florida Canyon) | Saturday, April 28, 8:30 AM
- BioBlitz at Boulder Creek Preserve | San Diego River Park Foundation | Saturday, April 28, 8:30 AM
- Nature Walks | Mission Trails Regional Park | Saturday, April 28, 8:30 & 9:30 AM
- Nature Walks | Tijuana Estuary | Saturday, April 28 Saturday, 11AM – 12PM
- SustainABLE Festival | Fleet Science Festival | Saturday, April 28, 11AM – 5PM
- Balboa Park BioBlitz | The Nat | Saturday, April 28, 11 AM – 3 PM
Challenge Day 3 | Sunday, April 29
- BioBlitz at Rose Creek Cottage | Friends of Rose Creek | Sunday, April 29, 8 AM
- Canyoneer Hike: Cleveland National Forest (Pacific Crest Trail) | Sunday, April 29, 8 AM
- Nature Walks | Mission Trails Regional Park | Sunday, April 29, 9:30 AM
- iNaturalist with Nat staff | The Nat | Sunday, April 29, 11 AM – 3 PM
- Bird Walk | Tijuana Estuary | Sunday, April 29, 3PM – 4PM
- Hike | Black Mountain Open Space | Sunday, April 29, 7 PM
- Grunion Run La Jolla Shores| San Diego State University Natural History Club | Sunday, April 29, 10:15 PM
Challenge Day 4 | Monday, April 30
- iNaturalist with Nat staff | The Nat | Monday, April 30, 11 AM – 3 PM
The Museum will announce the tallied results on Friday, May 4.
Upload your photos and observations to iNaturalist. You can use a desktop computer or the app. Not familiar with the app? Not to worry, it’s super user-friendly. All you have to do is:
- Download the free iNaturalist app to your Android or iPhone
- Join the 2018 City Nature Challenge: San Diego iNaturalist project
- Take photos from April 27-30 to make observations of wild plants and animals in San Diego (in your backyard, at a park, etc.)
- Upload your photos to iNaturalist
- Learn more as the iNaturalist community helps identify your observations
Want to stay involved past this event? Learn more about The Nat’s ongoing citizen science projects.
Are you a nature-based or outdoor organization that wants to get involved in partnering with us? Learn more about hosting your own event.
Host an event