All our events and activities are open to communities.
Corporate groups, please book with Thames21 using our corporate volunteering page
WaterBlitz – Marsh Dykes and Thamesmead
A WaterBlitz is a water sampling event that helps provide a snapshot of pollution issues across a river's catchment area. This event is for local...
Action for Silk Stream – River Action Day at Chandos Park
Join us for our Action for Silk Stream monthly volunteering days. They will be held on the last Thursday of each month. We will be...
Gallions Lake Wetland Discovery (Nature Forum)
Gallions Lake Tesco Mini Store 7-8 Thames Reach, London, London, United Kingdom🌿 Join Thames21 for an unforgettable evening of discovery at Gallions Lake! 🌊 📅 Date: April 25th 🕒 Time: 17:30 - 18:45 Step into the...
Cray River – Balsam Blitz
51.432920, 0.137835 Water Lane, London, Select a State or Province:, United KingdomIts that time again... Spring has fully sprung and we have work to do. Thames21 have for 2 years been laying the ground work to...
Quaggy Links- Capel Manor
Capel Manor, Mottingham Capel Manor Mottingham Lane, London, SE12 9AW, London, United KingdomJoin us at Capel Manor College, Mottingham to restore the River Quaggy! Read more about the project here > https://www.thames21.org.uk/improving-rivers/quaggy-habitats-capel-manor-project/ Sign up here >https://book.plinth.org.uk/e/f9UCLAQXyIU1Wz128nex Activities...
City Nature Challenge – Eastbrookend Bio-Blitz and Nature Day
Eastbrookend Discovery Centre, The Chase, Dagenham, Romford RM7 0SS Eastbrookend Country Park, London, United KingdomIn partnership with the LBBD Ranger team at Eastbrookend Country Park, we are participating in the City Nature Challenge. Help us find and record as much...
Chiswick Eyot Conservation Days
Chiswick Eyot Draw dock at the bottom of Chiswick Lane where it meets Chiswick Mall around the corner of Fuller’s Brewery, London, United KingdomSign up here > https://book.plinth.org.uk/e/SOFDtIgw70Gohc6XHNvd Thames21 are working to restore Chiswick Eyot. Information about the day: Volunteer and help us to stabilise the island from...
Rewilding the Rom – Beating the Balsam Back
Eastbrookend Discovery Centre Car Park Eastbrookend Discovery Centre Car Park, London, United KingdomJoin Thames21 for a day of meaningful impact and community connection as we focus on removing Himalayan Balsam from the banks of the River Rom...
Chinbrook Meadows Litter Pick
Chinbrook Meadows , United KingdomThe Chinbrook Meadows wetlands have finally been excavated! After years of planning and two months of construction, the wetlands are almost ready. We need your...
Dollis Brook – Balsam Blitz
51.643019, -0.195686This particular event we will be focusing on invasive species removal exclusively. This will involve a fairly long walk, just over 1k in waders along the Dollis Brook so a reasonable level of fitness is required for this event, and isn’t suitable for under 16’s.
Cray River – Balsam Blitz
Its that time again... Spring has fully sprung and we have work to do. Thames21 have for 2 years been laying the ground work to...
Thames Road Wetland – Habitat Maintenance
Thames Road Wetland Thames Road by River Cray Bridge, Barnes Cray, Crayford, United KingdomThis event has been postponed to allow the nesting birds a chance to breed quietly, please join up again for the following events. Volunteering...
Chiswick Eyot Conservation Days
Chiswick Eyot Draw dock at the bottom of Chiswick Lane where it meets Chiswick Mall around the corner of Fuller’s Brewery, London, United KingdomSign up here > https://book.plinth.org.uk/e/SOFDtIgw70Gohc6XHNvd Thames21 are working to restore Chiswick Eyot. Information about the day: Volunteer and help us to stabilise the island from...
Dollis Brook Dead Hedging
Brook Farm Open Space Brook Farm Open Space, Car Park near Pavillion Off High Road, Barnet, United KingdomTHAMES21 are removing the outdated toe-boarding from the Dollis Brook along Brook Farm Open Space, and we need volunteer help from the community. There are...
Action for Silk Stream – Wellbeing celebration in Watling Park
To mark Mental Health Awareness week, Action for Silk Stream Project, Fit and Active Barnet (FAB) and Meridian Wellbeing are holding an event to get...
Chinbrook Meadows Litter Pick
Chinbrook Meadows , United KingdomThe Chinbrook Meadows wetlands have finally been excavated! After years of planning and two months of construction, the wetlands are almost ready. We need your...
Action for Silk Stream – Chandos Park bat walk
Action for Silk Stream is a project that is helping to tackle the effects of climate change by making space for water, reducing flooding and improving...
Dollis Brook – Balsam Blitz
51.630724, -0.178791As part of the Thames21 "Dollis Brook Toe-boarding removal Project" we were also successful in securing some funding from Affinity Water to tackle the invasive...
Cray River – Balsam Blitz
51.441173, 0.149808Himalayan Balsam, an invasive plant that damages our fragile river systems, it erodes the riverbanks, outcompeting native plants and grows readily in wet condition. Sadly, it has spread quite pervasively down many UK rivers like the Cray in Bexley.
Chiswick Eyot Conservation Days
Chiswick Eyot Draw dock at the bottom of Chiswick Lane where it meets Chiswick Mall around the corner of Fuller’s Brewery, London, United KingdomSign up here > https://book.plinth.org.uk/e/SOFDtIgw70Gohc6XHNvd Thames21 are working to restore Chiswick Eyot. Information about the day: Volunteer and help us to stabilise the island from...
Cray River – Balsam Blitz
51.441173, 0.149808Himalayan Balsam, an invasive plant that damages our fragile river systems, it erodes the riverbanks, outcompeting native plants and grows readily in wet condition. Sadly, it has spread quite pervasively down many UK rivers like the Cray in Bexley.
Chiswick Eyot Conservation Days
Chiswick Eyot Draw dock at the bottom of Chiswick Lane where it meets Chiswick Mall around the corner of Fuller’s Brewery, London, United KingdomSign up here > https://book.plinth.org.uk/e/SOFDtIgw70Gohc6XHNvd Thames21 are working to restore Chiswick Eyot. Information about the day: Volunteer and help us to stabilise the island from...
Rewilding the Rom – Beating the Balsam Back
Eastbrookend Discovery Centre Car Park Eastbrookend Discovery Centre Car Park, London, United KingdomJoin Thames21 for a day of meaningful impact and community connection as we focus on removing Himalayan Balsam from the banks of the River Rom...
Thames Road Wetland – Habitat Maintenance
Thames Road Wetland Thames Road by River Cray Bridge, Barnes Cray, Crayford, United KingdomVolunteering some time for wetland habitat maintenance is a valuable way to help the environment and safeguard fragile ecosystems. Wetlands are crucial for biodiversity and...
Dollis Brook – Balsam Blitz
51.643019, -0.195686As part of the Thames21 “Dollis Brook Toe-boarding removal Project” we were also successful in securing some funding from Affinity Water to tackle the invasive plant Himalayan Balsam. While we are...