Events
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Join our Microplasticblitz across the Brent catchment
Various - Brent Catchment London, United KingdomREGISTER HERE Our rivers are beautiful spaces, but they can face growing challenges from plastic pollution. Join us for a group water sampling event to...
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Understanding Urban Rivers Training Course
Blue Garage Blue Garage, 30 Engate Street, Lewisham, LondonWould you like to be able to identify the signs of a healthy river? Join us as we journey through the evolution of a river,...
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Introduction to River Restoration Training Course
Blue Garage Blue Garage, 30 Engate Street, Lewisham, LondonDo you want to learn more about river restoration in London? In this course you will learn about river restoration techniques and their application in...
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Wildlife Walk: Exploring Costons Brook & Its Water Vole Potential
Pear Tree Bistro Stockdove Way, GreenfordJoin Thames21, Citizen Zoo, Ealing Wildlife Group, and Ealing Council for a free guided walk along the Costons Brook to explore the exciting potential to...
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Action for Silk Stream – River Action Day
Watling Park Watling Park, Edgware, United KingdomJoin us for our Action for Silk Stream monthly volunteering days. They will be held on the last Thursday of each month. We will be...
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Leading Action for Healthy Rivers Training Course
Blue Garage Blue Garage, 30 Engate Street, Lewisham, LondonBecome a River Guardian! This course will give you the skills and confidence necessary to plan and run safe and effective river action events in your community. It will enable you to set up...
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Roding Photography Walk and Workshop
BOOK HERE Join Thames21 and local artist Andrew Brown for an exciting river walk and photography workshop. We'll explore the scenic areas around the River Roding...
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Oxleas Woods – Slowing the Flow
Oxleas Wood Cafe Crown Woods Lane, London, England, United KingdomJoin us to turn Oxleas Woods into a flood-fighting, biodiversity-boosting powerhouse! This winter, join us for 15 fun and hands-on volunteer events as we transform...
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Oxleas Woods – Slowing the Flow
Oxleas Wood Cafe Crown Woods Lane, London, England, United KingdomJoin us to turn Oxleas Woods into a flood-fighting, biodiversity-boosting powerhouse! This winter, join us for 15 fun and hands-on volunteer events as we transform...
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Oxleas Woods – Slowing the Flow
Oxleas Wood Cafe Crown Woods Lane, London, England, United KingdomJoin us to turn Oxleas Woods into a flood-fighting, biodiversity-boosting powerhouse! This winter, join us for 15 fun and hands-on volunteer events as we transform...
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[CANCELLED DUE TO THE WEATHER] Back in Beck – River Restoration Project
High Broom Wood South Eden Park Road, England, United KingdomJoin us to bring the River Beck back to life! A total of 7 fun and interactive volunteer events will be held throughout the winter...
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Back in Beck – River Restoration Project
High Broom Wood South Eden Park Road, England, United KingdomJoin us to bring the River Beck back to life! A total of 7 fun and interactive volunteer events will be held throughout the winter...
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Big Wet Wipe Count – Autumn 2026
BOOK HERE Help protect the River Thames by measuring the impact of wet wipes deposited on its shores! Join Thames21 to gather crucial data on...
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Dollis Brook Revival – River Restoration Project
Dollis Brook, Whetstone Stray 21 Longland Drive, Barnet, United KingdomJoin us to bring the Dollis Brook back to life! A total of 10 fun and interactive volunteer events will be held throughout the winter...
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Dollis Brook Revival – River Restoration Project
Dollis Brook, Whetstone Stray 21 Longland Drive, Barnet, United KingdomJoin us to bring the Dollis Brook back to life! A total of 10 fun and interactive volunteer events will be held throughout the winter...
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Thames Road Wetland: Help Manage An Important Wetland
Thames Road Wetland Thames Road by River Cray Bridge, Barnes Cray, Crayford, United KingdomREGISTER HERE Despite its urban surroundings, Thames Road Wetland which sits within the Green Belt, is part of a Site of Metropolitan Importance for Nature...
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Wildlife Walk: Exploring Costons Brook & Its Water Vole Potential
Pear Tree Bistro Stockdove Way, GreenfordJoin Thames21, Citizen Zoo, Ealing Wildlife Group, and Ealing Council for a free guided walk along the Costons Brook to explore the exciting potential to...
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Action for Silk Stream – Walk, Gather & Make Nature Prints
Watling Park Orchard Watling Park, Colchester Road Entrance, Burnt Oak, Barnet, LondonHelp us celebrate Barnet Climate Action Week on Sunday 18 October 2026 from 10:30AM to 12:30PM Join a family arts & crafts event, where we...
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Oxleas Woods – Slowing the Flow
Oxleas Wood Cafe Crown Woods Lane, London, England, United KingdomJoin us to turn Oxleas Woods into a flood-fighting, biodiversity-boosting powerhouse! This winter, join us for 15 fun and hands-on volunteer events as we transform...
Free -
Oxleas Woods – Slowing the Flow
Oxleas Wood Cafe Crown Woods Lane, London, England, United KingdomJoin us to turn Oxleas Woods into a flood-fighting, biodiversity-boosting powerhouse! This winter, join us for 15 fun and hands-on volunteer events as we transform...
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Action for Silk Stream River Action Day
Chandos Park , United KingdomJoin us for our Action for Silk Stream monthly volunteering days. We will be at Chandos Park in Harrow where we will be giving this...
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Foots Cray Meadows – Pond Vegetation Management & Clearing
Five Arches Foots Cray Meadows Leafield Lane, Sidcup, United KingdomJoin us at beautiful Foots Cray Meadows close to the historic Five Arch Bridge to help manage the ponds that are part of the River...
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Ladywell Fields River Restoration
Ladywell Fields Lewisham, United KingdomBOOK HERE Come join us on Friday 30th October! Time: 10.00am-15.00pm We’ll be reinstating a small island in the north field of Ladywell Fields to...
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Chiswick Eyot Conservation
Chiswick Eyot, The Mall, London W4 2PR Chiswick Eyot, London, United KingdomThames21 is working to restore Chiswick Eyot. BOOK HERE Information about the day: Volunteer and help us to stabilise the island from further erosion and...
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Back in Beck – River Restoration Project
High Broom Wood South Eden Park Road, England, United KingdomJoin us to bring the River Beck back to life! A total of 7 fun and interactive volunteer events will be held throughout the winter...
Free
All our events and activities are open to communities.
Corporate groups, please book with Thames21 using our corporate volunteering page