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2026 City Nature Challenge

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Calling all nature lovers, help Knox compete with cities from around the world to capture and upload photographs of local wild plants and animals in the 2026 City Nature Challenge from Friday 24 April to Monday 27 April.   

Let’s show the world how incredible the biodiversity of Knox is. 

What is the City Nature Challenge? 

The City Nature Challenge is an annual global event that celebrates local wildlife and flora through citizen science. The event is coordinated by the California Academy of Sciences and the Los Angeles County Natural History Museum and was first run in 2016.  

During the 4-day challenge snap a photo or record the sound of any wild plant or animal and upload it to the iNaturalist app. Make sure to include the location details too. At the end of the Challenge, the city with the most observations wins. 

There are plenty of events running over the Challenge weekend that can also help increase your chances of making some unique and interesting discoveries. 

Events Calendar

How to participate 

  1. Download the free iNaturalist app from Apple store or Google Play or access it using the website
  2. Create a free iNaturalist account
  3. Look out for wild plants and animals to photograph in your local bushland reserves and parks during the observation period
  4. Upload your photographs or sound recordings to the app. You can do this anytime of the year and don’t have to wait for the challenge to commence.  

To follow how Greater Melbourne is tracking against the rest of the world:  

To follow how Knox is contributing to the Greater Melbourne project:  

For more information on how to make an observation on your phone, watch here. 

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