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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
        • Education and Training
          • Citizen Science
            • Leading Action for Healthy Rivers: Thames21’s flagship training course
            • Welsh Harp Environmental Education Centre
        • What we do
  • News
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        • London Rivers Week 2026 Photography Competition
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COVID-19

volunteers at a Covid secure event

Thames21 activities to resume under strict guidelines: update 16 March

Thames21 are pleased to announce that we will resume riverside volunteering activity from March 29th with a group size limit of 15. In line with…

Published 16th March 202116th March 2021 Published in Latest news

Latest river Thames survey confirms COVID-19 plastic impact

COVID-19 driving increase in single-use plastic pollution Date of release: 18 December 2020 London’s largest mass census of river plastic, the annual Thames River Watch…

Published 21st December 20205th January 2021 Published in Latest news, Media Releases

Investing in London’s rivers will boost post-COVID recovery, report shows

LONDON RIVERS WEEK 2020 Saturday 24 October – Sunday 1 November New report shows rewilding promotes social inclusion as well as boosting flagship wildlife species London,…

Published 26th October 202026th October 2020 Published in Latest news, Media Releases, Thames 21

Thames21 activities to continue under safe guidelines: Update 16 October

Further COVID-19 restrictions will come into force in London this Saturday 17 October. These still allow organised activity for groups larger than six and up…

Published 16th October 202016th October 2020 Published in Latest news, Thames 21

Thames21 volunteering activities update: 7 September

Thames21 StatementSeptember 2020 The safety, health and wellbeing of the public, our volunteers and our staff are of paramount importance to us. Our events and…

Published 17th September 202017th September 2020 Published in Latest news

Thames21 receives vital COVID-19 funding from the Garfield Weston Foundation

Thames21 has received a grant for core funding from the Garfield Weston Foundation to enable it to continue its work during and after the COVID-19…

Published 10th June 2020 Published in Latest news

Latest News

  • Londoners encouraged to discover their local rivers as festival returns
    Londoners are being encouraged to reconnect with their local rivers as part of this year’s London Rivers Week 2026, marking a decade of connecting people with the capital’s waterways. Running from Saturday 23rd May to Sunday 31st May, the festival, which main theme...

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Thames21
THAMES21

Address

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

Contact us

Satellite Office

Satellite Office: 

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

Contact us


Registered Charity number: 1103997

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