Lichen Walk is a semi-virtual guided walk of 4 km around lichens in Brussels. 

This project is the result of a collaborative project between Natagora, Les Cercles des Naturalistes de Belgique and the University of Edinburgh represented by Lucie Pestiaux, within the framework of the course “Geoscience Outreach and Engagement”.


The Lichen Walk project aims to raise awareness of the presence and importance of lichens in the formation of the urban ecosystem and their impact on our perception of the world. If we observe them carefully, lichens can allow us to step back from our everyday life and transport us to another world. In addition, the project attempts to introduce amateurs and the more experienced to lichenology – the study of lichens. 

After the walk, we hope that the participants will :

  • Consider the city as a hub of complex interactions, of which lichens are a part.
  • Have sparked their interest in urban flora.
  • Learn to sense the environment around them by observing the distribution and presence of lichens.
  • Be able to identify common lichen species in urban areas.
  • Know what a lichen is and how the organism functions.

Who are we?

Like a symbiosis – a close and entangled relationship between several organisms – and like the lichen, the team that forms this project is diverse and multiple. 

Lucie Pestiaux

Lucie is at the origin of the project that was created as part of one of her courses at the University of Edinburgh. She will finish her studies in Environmental Science and Ecology with management at the University of Edinburgh in a few months. Through her academic and scientific studies, she is nourishing a philosophical questioning linked to the perception of the human on the living world. Passionate about the phenomena of relationship – and particularly symbiotic relationships – in the living world and through her training as a storyteller and systemic thinker, she tries to link different disciplines to create new stories in order to explain the world around us. 

Flore Depierre

Flore is the creator of the illustration of the map of the walk. After studying graphic design and digital communication in Annecy and Lyon, Flore decided to leave France and move to Brussels. Today she is a content creator in an environmental company and continues vector graphics. She also discovered more manual passions such as typography and lettering. Attracted by artisanal methods for more “unique” results, she is also interested in illustration, linocutting and sewing.

Our partners

Cercles des Naturalistes de Belgique

License et Copyright

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