Great Southern BioBlitz 2025
24 October 2025 - 27 October 2025
Region(s): Nationwide
Type(s): national Events, citizen Science
The Great Southern BioBlitz is an opportunity for all Southern Hemisphere countries to record organisms on iNaturalist during Spring and showcase our beautiful biodiversity to the world. The event is run by a grassroots network of keen citizen scientists from across the globe.
The Great Southern BioBlitz for 2025 will run 24–27 October. Participants in the event will then have a further 14 days to upload and identify all of their observations made during this period to the iNaturalist platform.
For more information and to join in: www.greatsouthernbioblitz.org/about-1
Become a participant
Anyone in the world is eligible to take part in the event. All you have to do is upload observations of wildlife to the iNaturalist platform. Observations, however, must be made somewhere in the southern hemisphere during the event time frame.
Register as a participant here to be kept informed and to qualify for a certificate.
See the FAQ's and more information on becoming a participant.
If you want to become an organiser go here: www.greatsouthernbioblitz.org/organiser-information.
Follow on social media using #GSB25.
Related content
Explore the wide range of projects we have under our citizen science section, including iNaturalist.
Check out these tips for planning your science programme using a citizen science project and the Getting started with citizen science and Online citizen science webinars.
The Hub has numerous resources under these concepts and topics: Biodiversity, Classification, Conservation, and Citizen science.
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