The Home River Bioblitz

A world-wide citizen science event where people explore the biodiversity of their local river

From 23th to 25th of September 2022, people around the world will go out to explore their local rivers, hosting the third Home River Bioblitz. During its second edition, over 600 people collected biodiversity data around more than 40 rivers, using iNaturalist.

We invite you to organize your own local Home River Bioblitz. To help you do so, and to help you communicate the story and results of your event to a wide audience, we will support you with various workshops. More information will follow soon! 

What is this Bioblitz about?

And what does it have to do with my river?

A bioblitz is a communal citizen-science effort to record a wide variety of species on a specific location within a certain timeframe. Bioblitzes are a way to connect people to their environments, zooming in to details they normally pass by and at the same time generating useful data for science and conservation.

The Home River Bioblitz focuses on the biodiversity in and around rivers, which are at the heart of all ecosystems. The event connects the stories of the people that protect, restore and celebrate these valuable places. Take a look at this storymap to learn more!




During the Home River Bioblitz, we go out to explore our local rivers together with peers, friends and family, thereby enlarging local networks of people that care about rivers. We identify the observed species with help of the global iNaturalist community. During an online recap session, we chat about the day with various specialists, zooming into some remarkable observations as well as discussing new ways to relate to our local river wildlife.

Join a local event

These were the locations of last year's Home River Bioblitz. Maybe this year you will find an event close to your home!

River Collective

Be part of a global river community

You will learn from other river lovers during online workshops and talks!

Just as much as we care about the biodiversity you will encounter during your Home River Bioblitz, we care about the reasons that you go out there on this day. People around the world are standing up to protect and celebrate their local rivers. These stories should be told and through several workshops, we will create the space to do so. 

This year, we want to build upon the experience of bioblitz organisers over the last years. We will be creating a space with tips and tricks with regards to how to make your data collection worthwhile for science, as well as how to engage different audiences during your local event. 


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This event was partly supported by a grant from the National Geographic Society.