All our events and activities are open to communities.
Corporate groups, please book with Thames21 using our corporate volunteering page
London Rivers Week 2024: River Wandle Clean Up
Join South East Rivers Trust at Poulter Park to don waders and enter the Wandle to remove litter and plastic pollution. Rubbish in our rivers...
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Space Brook Farm Open Space, Car Park near Pavillion Off High Road, Barnet, United KingdomTHAMES21 are removing the outdated toe-boarding from the Dollis Brook along Brook Farm Open Space, and we need volunteer help from the community.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
Watling Park Watling Park, Edgware, United KingdomTo 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
Chandos Park , United KingdomAction 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...
Leading Action for Healthy Rivers Training – Beckenham Place Park
Beckenham Place Park Beckenham Place Park, LondonTraining: Leading Action for Healthy Rivers Please note: This course training session is intended for local residents of Beckenham Place Park as a priority. We...
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...
Leading Action for Healthy Rivers Training – Central London
Walbrook Wharf 78-83 Upper Thames Street, London, United KingdomTraining: Leading Action for Healthy Rivers Thursday 23rd & Friday 24th May, 2024 We are looking to train future River Action Leaders! Take part in...
River Roding water quality training
Wanstead Park- The Temple Wanstead Park, London, United KingdomThames21 will be conducting an exciting program of water quality monitoring on the River Roding this summer, and we need citizen scientists to help. We'll...
River Roding water quality training
Wanstead Park- The Temple Wanstead Park, London, United KingdomThames21 will be conducting an exciting program of water quality monitoring on the River Roding this summer, and we need citizen scientists to help. We'll...
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.
Sands End River Clean Up & Litter Detectives
Broomhouse Dock SW6 3EH, Junction of Carnwath Road & Broomhouse Lane, Fulham, United KingdomBook your place here Do you want to help keep the River Thames clean and healthy? Join Thames21 at Broomhouse Dock on the 25th May...
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...
Gores Brook Introduction & Balsam Removal Event
51°32'23.0"N 0°08'29.5"E Hedgeman's Road, Gores Brook ParkTHAMES21 and Barking & Dagenham Ranger Service are embarking on a project to improve the Gores Brook through Gores Brook Park and we need your...
Action for Silk Stream – Free Half term activities at the Welsh Harp
Welsh Harp Enviornmental Education Centre Birchen Grove, London, United KingdomLet’s Go Wild at Welsh Harp! Come join us and explore the Welsh Harp Reservoir this May Half Term for FREE activities at the Welsh...
Action for Silk Stream – Free Half term activities at the Welsh Harp
Welsh Harp Enviornmental Education Centre Birchen Grove, London, United KingdomLet’s Go Wild at Welsh Harp! Come join us and explore the Welsh Harp Reservoir this May Half Term for FREE activities at the Welsh...
Action for Silk Stream – River Action Day at Watling Park
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. To book please...
Action for Silk Stream – Free Half term activities at the Welsh Harp
Welsh Harp Enviornmental Education Centre Birchen Grove, London, United KingdomLet’s Go Wild at Welsh Harp! Come join us and explore the Welsh Harp Reservoir this May Half Term for FREE activities at the Welsh...
River Litter Detectives – Broomhouse Dock
Broomhouse Dock SW6 3EH, Junction of Carnwath Road & Broomhouse Lane, Fulham, United KingdomBook your place here Come along and join Thames21 as a river citizen scientist on the River Thames. We will be collecting the litter we...
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.
River Litter Detectives – Bishop’s Park
Bishops Park Bishop's AveBOOK YOUR PLACE NOW Come along and join Thames21 as a river citizen scientist on the River Thames. We will be collecting the litter we...
Gores Brook Balsam – Himalayan Balsam Removal Event
51°32'22.9"N 0°08'29.3"ETHAMES21 and Barking & Dagenham Ranger Service are embarking on a project to improve the Gores Brook through Gores Brook Park and we need your...
Leading Action for Healthy Rivers Training – West London
Kingfisher Wharf Kingfisher Wharf, 51 Townmead Rd, London SW6 2SY, London, United KingdomTraining: Leading Action for Healthy Rivers June: Sunday 9th & Monday 10th We are looking to train future River Action Leaders! Take part in Thames21's...
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...