Skip to content
logo
  • logo
  • About us
        • About us
        • Contact Us
        • Jobs & Volunteer Positions
        • Our Funders
        • Equality, diversity and inclusion
        • Trustees
  • What we do
        • 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
  • Get Involved
        • Volunteer With Us
        • Corporate Team Days
        • Get Trained
        • London Rivers Week 2026 Photography Competition Winners Video
  • Donate now

Citizen Science

Largest citizen science Thames event of the year will measure hidden plastic menace

Large mounds are changing the shape of the Thames foreshore. On April 1, the day before the Boat Race, the public will help measure how much…

Published 23rd March 20172nd October 2017 Published in Media Releases

Thames21 data features on London TV as London Assembly investigates impact of plastic bottles

This Wednesday was an even busier one than usual for Thames21. We were interviewed by both London Live and BBC London about the huge problem…

Published 24th February 20178th June 2018 Published in Latest news
Thames21 honours its volunteers with special celebration and talk from author Tom Bolton

Thames21 honours its volunteers with special celebration and talk from author Tom Bolton

  Thames21 celebrated the ‘exponential impact’ of our volunteers last night at Wapping riverside pub the Prospect of Whitby. Entitled ‘Lost and Found in our…

Published 2nd December 20162nd December 2016 Published in Latest news

2,500 bottles stranded on the shore

By AJ McConville, Thames River Watch Programme Coordinator 2,500 plastic drinking bottles. That’s the number of single-use plastic drinks bottles collected from the Thames foreshore…

Published 25th November 201629th November 2020 Published in Blog, Thames River Watch
Thames21 to receive support from FatFace in Chelsea during Black Friday week

Thames21 to receive support from FatFace in Chelsea during Black Friday week

Date of release: November 17th, 2016 The Chelsea branch of FatFace, the clothing and gifts outlet, has chosen Thames21 as their “Thanks for Giving” charity…

Published 17th November 201618th November 2016 Published in Media Releases

Posts navigation

Newer posts

Latest News

  • 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 18
11:00 am - 1:00 pm

River Litter Detectives – Poplar Rowing Club

Poplar, Blackwall & District Rowing Club
Jun 24
3:00 pm - 5:00 pm

River Litter Detectives – Queenhithe

Queenhithe, City of London
View Calendar

Follow Us

Follow us on Facebook
Follow us on Twitter
Follow us on Instagram

Donate

Donate now
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

  • Home
  • Get Involved
  • Support Us
  • Latest news
  • Sign up for our e-news!
  • Media enquiries
  • Publications
  • Privacy Policy