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        • Empower communities to look after their local rivers:

          We mobilise thousands of volunteers every year, working along the riverbank to transform neglected rivers into areas that everyone can use and enjoy.

        • Restore the capital’s network of rivers through the power of nature

          We work to clean and green the capital’s 400-mile network of rivers through innovative solutions to boost biodiversity and restore nature.

        • Build a climate resilient London

          We help to build more engaged communities and healthier rivers better able to adapt to the impacts of climate change, now and into the future.

        • Empower communities to look after their local rivers
          We mobilise thousands of volunteers every year, working along the riverbank to transform neglected rivers into areas that everyone can use and enjoy.

        • Restore the capital’s network of rivers through the power of nature
          We work to clean and green the capital’s 400-mile network of rivers through innovative solutions to boost biodiversity and restore nature.

        • Build a climate resilient London
          We help to build more engaged communities and healthier rivers better able to adapt to the impacts of climate change, now and into the future.

        • Improving Rivers
          • Backwater restoration in the Maidenhead to Teddington catchment
          • Bathing waters – Reclaim Our Rivers
          • Cator Park, London Borough of Bromley
          • Understanding our rivers through connecting communities to waterways – Catchment Partnerships
          • Chinbrook Meadows Wetlands
          • Community Action for the Cut
          • Greenwich Natural Flood Management (NFM) Project
          • Marsh Dykes & Thamesmead Catchment Improvement Project
          • Oxford Rivers Project
          • Quaggy Habitats – Capel Manor Project
          • Queensmead Recreation Ground, London Borough of Bromley
          • Rewilding the Rom
          • River Beck Restoration
          • River Biodiversity Net Gain Units
          • Road run-off
          • South Essex Catchment Partnership
          • The River Ravensbourne and Glassmill Pond
        • Connecting Communities
          • Beckenham Place Park East – River Ravensbourne
          • Become a Citizen Scientist
          • Chestnuts Field
          • EMPOWER Rivers
          • Plasticblitz
          • Action for Silk Stream
          • Thames Connections
          • Thames River Watch
          • The Roding Rises
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          • Citizen Science
            • Leading Action for Healthy Rivers: Thames21’s flagship training course
            • Welsh Harp Environmental Education Centre
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River Thames

The comforting taste of Christmas is damaging our planet

By Seren Nelson,Corporate Partnerships Officer at Thames21 It’s winter, the nights are getting darker and there is a certain expectant hum in the air: Christmas…

Published 5th December 20178th June 2018 Published in Blog

Volunteers count record 4,350 single-use plastic bottles in a day

By Ian Lamont, Communications Manager A group of Thames21 volunteers has reset the record for the number of single-use plastic bottles found in one day…

Published 1st December 201728th April 2018 Published in Latest news

Thames21 celebrates its volunteers at annual reception

“Corporate volunteering is about community action not just sponsorship” a key Thames21 partner told the charity’s annual reception on Thursday evening. Clyde Muir, Vice President,…

Published 13th October 201729th November 2020 Published in Latest news

Great River Rescue launched on Isle of Dogs – now register your event for October!

Volunteers cleared litter from Millwall Draw Dock on the Isle of Dogs on World Rivers Day on Sunday to launch the Great River Rescue campaign….

Published 25th September 2017 Published in Latest news
Big Bottle Count September 2017

More than 4,000 plastic bottles removed from River Thames in one afternoon

  More than 4,000 plastic bottles were removed from the River Thames last Saturday as part of Thames21’s annual Big Bottle Count.  Approximately 200 Londoners…

Published 11th September 2017 Published in Latest news

The Great River Rescue is coming – and you’re invited!

Register to clean up your local river in October’s country-wide clean-up of our rivers Date of release: August 30, 2017   The public is invited…

Published 30th August 201716th October 2017 Published in Media Releases

Hugh Fearnley-Whittingstall backs new Thames21 campaign to investigate problem of single-use plastic glasses on Thames foreshore

Date of release: August 14 2017 A campaign to encourage pubs along the Thames to use more washable plastic glasses rather than single-use plastic glasses has…

Published 16th August 201716th October 2017 Published in Media Releases

Waterways Charity Thames21 Recruits Industry Heavyweights to Board

Date of Release: July 7, 2017 Martin Baggs and Peter Gerstrom appointed as Trustees Martin  Baggs, former CEO of Thames Water, and Peter Gerstrom, former…

Published 7th August 201716th October 2017 Published in Media Releases

Londoners urged to explore the capital’s forgotten rivers during London Rivers Week

Escape city stress by exploring ‘66 Shards-worth’ of newly rewilded rivers Monday 26 JUNE – Sunday 2 JULY London, UK – 13 June 2017: Londoners…

Published 14th June 201716th October 2017 Published in Media Releases

Book your half-term session at the Welsh Harp Centre with Thames21

Book your children in now for a great day out during the summer half-term! We have sessions at the Welsh Harp Environmental Education Centre, in Birchen…

Published 18th May 20174th September 2017 Published in Latest news

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  • Thames21’s response to Thames Water’s pollution incidents
    Recent figures published in The Times have shown that Thames Water was responsible for almost a third of the water sector’s most harmful pollution incidents in 2025. A Thames21 spokesman said: “The scale of serious pollution incidents linked to Thames Water is deeply...

Events Diary

Upcoming Events

Jun 24
3:00 pm - 5:00 pm

River Litter Detectives – Queenhithe

Queenhithe, City of London
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Thames21
THAMES21

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Main Office location (& deliveries)

The City of London,
Guildhall,
Aldermanbury Street,
LONDON EC2V 7HH

Postal Address

The City of London,
Guildhall,
PO Box 270,
LONDON EC2P 2EJ

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Satellite Office: 

The Lock Office,
Bow Locks,
Navigation Road (off Gillender Street),
LONDON E3 3JY

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Registered Charity number: 1103997

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