All our events and activities are open to communities.
Corporate groups, please book with Thames21 using our corporate volunteering page
Dollis Brook – Balsam Blitz
brook pa Brook Farm Open Space Pavilion car parkAs 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...
Cray River – Balsam Blitz
51.432897, 0.137894Himalayan 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.
London Rivers Week 2024: Beverley Brook Lost Nature Trail
Join Friends of Barnes Common for this brilliant walk along the Beverley Brook in south-west London. The purpose of the walk is to engage the...
London Rivers Week 2024: Walk along the Mutton Brook – Pollution Issues and Hanna Checker Demo
Confluence between Dollis Brook and Mutton Brook LondonJoin us for a morning walk along the Mutton Brook where we'll discuss some of the pollution issues negatively impacting the brook and ways citizen...
London Rivers Week 2024: 3 Rivers Clean Up with QWAG
Get on your waders and help clean Lewisham's rivers of litter and Himalayan balsam. BOOKING ESSENTIAL - please register by clicking the email below and...
London Rivers Week 2024: Guided walk around Chinbrook Meadows and crafts
Chinbrook Meadows , United KingdomIn celebration of London Rivers Week 2024 ('London is a river city'), join our friendly guides for a walk around the newly excavated wetland where...
London Rivers Week 2024: Wilbury Way Clean Up and Balsam Bash
Wilbury Way N18 1UY Wilbury WayThe Pymmes Brookers will play their part by carrying out a clean up and balsam bash at Wilbury Way. The wetland beside the brook has...
London Rivers Week 2024: Three parks challenge
Deansbrook Road 249 Deansbrook Road, LondonJoin the Action for Silk Stream team on the three parks challenge on the 22nd of June as part of London Rivers Week. Follow Burnt...
London Rivers Week 2024: 3 Rivers Clean Up Walk
OPENING EVENT! Join our friends Natures Gym for a walk along the Waterlink Way between Lower Sydenham and Brookmill Park. There will be some talks...
FULLY BOOKED: London Rivers Week 2024: Mudlarking on the Thames – A Talk by Nicola White
Docklands Settlement No 2, 4a Saunders Ness Road, E14 3PS Docklands Settlement No 2, 4a Saunders Ness Road, London, Select a State or Province:, United Kingdom*FULLY BOOKED: If you wish to be placed on a reserve list, please contact Matt Dawson at matt.dawson@thames21.org.uk. If you are not registered, you will...
FULLY BOOKED – London Rivers Week 2024: Deptford Creek Fish Survey – two sessions
Want to learn more about the aquatic life that calls Deptford Creek home? Then come to the Creekside Discovery Centre to help with its fish...
London Rivers Week 2024: Morden Hall Park Family Craft Experience Day
Thames21 is collaborating with the National Trust to organise a day of craft activities for children which will involve sitting by the River Wandle and...
London Rivers Week 2024: 3 Rivers Clean Up at Glassmill Pond
Date and time: Sunday 23rd June, 10am - noon. Meet at the concrete ramp at Glassmill Pond, Glassmill Lane, Bromley BR2 0EW. Pond dipping, water quality...
London Rivers Week 2024: Elmbridge Meadows Community Day
Join the South East Rivers Trust on Sunday 23rd June for a day of river-themed family fun! Come and learn more about the Elmbridge Meadows...
London Rivers Week 2024: 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...
London Rivers Week 2024: Fungi & Rivers – The Missing Link – Sunday 23rd June event
Fungi are usually associated with terrestrial habitats, like forests and grassland, but their role in sustaining healthy aquatic ecosystems – including rivers – is often...
London Rivers Week 2024: Channelsea Conservation
Join our friends Surge Co-operative for a day of conservation work on the Channelsea River and at garden called 'Long Wall Ecology'. You will start...
FULLY BOOKED – London Rivers Week 2024: How to fix our broken water system?
Only 14% of rivers in England have a good ecological status and none have a good chemical status. Water quality and the health of our...
London Rivers Week 2024: 6km Thames Loop Nature Walk
Join Brenna Boyle of Wild Capital (who developed this attractive 6k two bridges walk besides The Thames) as she leads a free walk with commentary...
FULLY BOOKED – London Rivers Week 2024: Make London a ‘sponge city’ panel event
Time and date: Monday 24th Jun 2024 6pm - 7:30pm Location: At The Gallery - 70 Cowcross Street, London, EC1M 6EJ Register here: https://cpre-london.eventcube.io/events/60231/make-london-a-sponge-city/ Join us...
London Rivers Week 2024: Longford River Plasticblitz
The Longford is an urban river with a plastic pollution problem. Please join Thames Landscape Strategy to help litter pick this fantastic river to make...
London Rivers Week 2024: Watervole recovery and a mink-free Britain
Join Water Life Recovery Trust for an online webinar to learn about their trailblazing partnership project to eradicate invasive American Mink from Britain. Learn about...
London Rivers Week 2024: WaterBlitz Showcase – Revealing insights from the Marsh Dykes and Thamesmead catchment
OnlineJoin us on Monday June 24th during London Rivers Week for an exclusive online talk where we unveil the results from the recent WaterBlitz collection...
London Rivers Week 2024: River Litter Detectives – Poplar Rowing Club
Poplar, Blackwall & District Rowing Club Poplar, Blackwall & District Rowing Club, London, United KingdomPlease book your place here! Come along and join Thames21 as a river citizen scientist on the River Thames. We will be collecting the litter...
London Rivers Week 2024: Restoring the River Roding
Wanstead Park- The Temple Wanstead Park, London, United KingdomPlease sign up using this link! Welcome to London Rivers Week! This special occasion is dedicated to honoring London's rivers and recognizing London as a...