

Discover nature. Connect with community. Support conservation.
What is a Bioblitz?
A bioblitz is a community-powered event where people come together to find and identify as many species as possible in a specific area, over a short period of time. Whether you're a seasoned naturalist or just curious about the world around you, bioblitzes are a fun and engaging way to explore local biodiversity.
At Bioblitz London, we organize nature walks and species-spotting events throughout the city to celebrate and document the incredible variety of life in our green spaces.
Why iNaturalist?
We use iNaturalist to record observations during our bioblitzes. This free, easy-to-use app allows anyone to upload photos of plants, animals, fungi, and other organisms. Each observation contributes to a global database used by scientists, conservationists, and educators to better understand and protect biodiversity.
Your data helps:
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Track species over time
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Monitor changes in ecosystems
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Support conservation efforts
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Connect people with nature
Every observation counts - whether it's a rare bird or a common buckthorn. Together, we’re building a living record of London’s natural heritage.
What's next?
GREAT CANADIAN BIOBLITZ
September 21 - 28, 2025
Help us make observations for the CWF's Great Canadian BioBlitz to help take Canada's nature selfie! We will be hosting around 10 nature walks in London from September 21-28, 2025.
You have to join "The CWF Great Canadian Bioblitz 2025" project for your observations to count!
Event Photos
BioBlitz London is possible thanks to support from the following partners:












