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

London Rivers Week

London Rivers Week 2026: Stanley Picker Gallery’s exhibition – A Simultaneous Agreement

All are welcome to the Stanley Picker Gallery’s exhibition ‘A Simultaneous Agreement’ presented as part of London Rivers Week 2026. The exhibition officially runs from…

London Rivers Week 2026: Enfield Beaver Tours

Explore the Enfield’s beaver site on a guided tour and learn how they transform rivers for nature during London Rivers Week. BOOK HERE. Date: Wednesday…

London Rivers Week 2026: London’s Last Wilderness – Film Screening & Q&A

As part of London Rivers Week 2026, London’s Last Wilderness, a visually stunning documentary by Pablo Behrens, will be screened for free at 11:00am on…

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…

Published 11th May 202621st May 2026 Published in Media Releases

London Rivers Week 2026: Balsam Bash at Ham

Join our friends Thames Landscape Strategy for a free, friendly, hands‑on volunteer session helping to control Himalayan Balsam, an invasive plant that poses a threat…

London Rivers Week 2026: Tidal Tales – Walking Through Flux & Flow

Kicking off London Rivers Week, Thames21 will be going on a river walking adventure with artist Remiiya Badru from King Edward Memorial Park, in Wapping,…

London Rivers Week 2026: Brown Girls Summit Walk

CLICK HERE TO REGISTER Join Brown Girls Summit for a free women-only guided walk as part of London Rivers Week 2026. Brown Girls Summit is…

London Rivers Week 2026: Evening stroll along River Crane at Mill Road, Twickenham

Join Friends of the River Crane (FORCE) for this fantastic evening walk along the River Crane. This FREE guided walk will start at Mill Road…

London Rivers Week 2026: Walk the Lambeth – Riverside Walk [FULLY BOOKED -WAITLIST AVAILABLE]

As part of London Rivers Week 2026, join Thames blogger Patricia Stoughton for a leisurely, free guided walk along a step-free section of the Thames…

London Rivers Week 2026: Guided Walk Exploring the Industrial History of the River Wandle [FULLY BOOKED]

Led by John Sheridan of the Wandle Industrial Museum, this FREE event starts at Mitcham, lets you view sections of the River Wandle, and finishes…

Posts navigation

Older 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

May 23
May 23 @ 8:00 am - June 12 @ 5:00 pm

London Rivers Week 2026: Stanley Picker Gallery’s exhibition – A Simultaneous Agreement

Stanley Picker Gallery
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