Discover Leiden and contribute
Discover Leiden and contribute to society or science in your own way. Choose one of the activities below, go exploring and receive an unique experience or reward. Make your city trip unforgettable and leave something positive behind, so that Leiden can flourish.
Activities are valid from 20 September 2025.
All activities
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Litter picking at public park Plantsoen - Let's Bloomit
Litter picking at public park Plantsoen - Let's Bloomit
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Litter picking at public park Plantsoen - Let's Bloomit
Litter picking at public park Plantsoen - Let's Bloomit
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Litter picking at Cronesteyn public park - Let's Bloomit
Litter picking at Cronesteyn public park - Let's Bloomit
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Litter picking at public park Van der Werff - Let's Bloomit
Litter picking at public park Van der Werff - Let's Bloomit
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Litter picking at public park Ankerpark - Let's Bloomit
Litter picking at public park Ankerpark - Let's Bloomit
All activities on the map
Sustainable locations - On the road for gifts, useful products, activities and tasty tastes
Out and about in Leiden
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City of Science
City of Science
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Event calendar
Event calendar
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Cycling & walking
Cycling & walking
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Public Transportation
Public Transportation
