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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
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          • Plasticblitz
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          • The Roding Rises
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            • Welsh Harp Environmental Education Centre
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25 events found.

Events

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Today
  • April 2026

  • Fri 24

    The River Cray at Crayford: Waterside Gardens

    April 24 @ 9:45 am - 1:30 pm

    Come and join us on the River Cray in the centre of Crayford Town! We will be working in and around Waterside Gardens, Crayford (also...

  • Thu 30

    Action for Silk Stream – River Action Day

    April 30 @ 11:00 am - 3:00 pm
    Montrose Playing Fields London, United Kingdom

    Join us for our Action for Silk Stream monthly volunteering days. They will be held on the last Thursday of each month. Please book here:...

  • May 2026

  • Fri 1

    Action for Silk Stream – Bat Walk

    May 1 @ 8:15 am - 9:15 pm
    Lyndhurst Park Edgware

    Join us for a Bat Walk from Lyndhurst Park to the Meads Open Space. Meet us at 8.15pm and we will have a walk around...

  • Sat 23

    London Rivers Week 2026: River Beck

    May 23 @ 10:00 am - 2:00 pm
    Harvington Wood Manor Way, Beckenham, England, United Kingdom

    How well do you know your local river? Join Thames21 in Harvington Woods for a free event as part of London Rivers Week to get...

    Free
  • Sat 23

    London Rivers Week 2026: Source to Sea – Walking the Ravensbourne (Part 1 – Sat 23rd May) [FULLY BOOKED]

    May 23 @ 10:30 am - 1:30 pm
    Keston Ponds

    To mark London Rivers Week, join Creekside Discovery Centre on this special free walk following the Ravensbourne River from its source to where it meets...

    Free
  • Sat 23

    London Rivers Week 2026: History & Ecology of Camley Street Natural Park [FULLY BOOKED]

    May 23 @ 11:00 am - 12:00 pm
    Camley Street Natural Park Camley Street, London, United Kingdom

    Join the London Wildlife Trust for a free guided walk around Camley Street Natural Park as part of London Rivers Week 2026. Sandwiched between the...

    Free
  • Sat 23

    London Rivers Week 2026: Hammersmith to Nature – A Relaxed Thames Path Walk [FULLY BOOKED]

    May 23 @ 11:00 am - 2:00 pm

    Celebrate London Rivers Week with a refreshing guided walk led by Toni-Ann Murphy, founder of outdoor community group Touch Grass CIC. Join Thames21 for a...

  • Sat 23

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

    May 23 @ 11:30 am - 2:00 pm
    King Edward Memorial Park, Tideway Site, The Hwy, London, E1W 3HT King Edward Memorial Park, London

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

  • Sat 23

    London Rivers Week 2026: Liquid History – A Photowalk [FULLY BOOKED – Waitlist Available]

    May 23 @ 12:00 pm - 2:00 pm
    Outside the Church of St Magnus-the-Martyr Lower Thames St

    More than just a landmark, the River Thames has been a water source for Londoners for two millennia; its tides have dictated the shape of...

    Free
  • Sat 23

    London Rivers Week 2026: Enriching Elmbridge Meadows Celebration

    May 23 @ 12:00 pm - 3:00 pm
    Elmbridge Meadows Elmbridge Meadows Open Space,Elmbridge Meadows, Surbiton, United Kingdom

    Join South East Rivers Trust (SERT) for a free, fun, family-friendly afternoon in Elmbridge Meadows as part of London Rivers Week to connect with the...

    Free
  • Sat 23

    London Rivers Week 2026: Clean Air Canal art exhibition

    May 23 @ 12:00 pm - May 27 @ 6:00 pm
    The Gramophone Works, 326 Kensal Road, W10 5BZ The Gramophone Works, Kindred Studios, London

    Join artist Camilla Brendon at Kindred Studios in West London during London Rivers Week for a FREE, fantastic art exhibition called 'Clean Air Canal'. It...

  • Sat 23

    London Rivers Week 2026: A Short Introduction to the Thames Estuary – Guided Walk [FULLY BOOKED]

    May 23 @ 2:00 pm - 4:00 pm

    As part of London Rivers Week 2026, come and join Thames Estuary Partnership for a FREE guided walk around the Greenwich Peninsula to explore the lesser-known...

  • Sat 23

    London Rivers Week 2026: River soundwalk led by afromerm [FULLY BOOKED – Waitlist Available]

    May 23 @ 2:00 pm - 4:00 pm
    Rotherhithe London

    Join a free community listening walk that traces the Thames riverside from Rotherhithe to Deptford as part of London Rivers Week 2026. Move your body,...

    Free
  • Sun 24

    London Rivers Week 2026: Urban Riverfly Training at Chingford Community Station Hub [FULLY BOOKED – Waitlist available]

    May 24 @ 9:30 am - 4:30 pm
    Chingford Community Hub Station Approach, Chingford Overground Station

    Join Thames21 for a free Urban Riverfly training as part of London Rivers Week 2026 and become an Urban Riverfly Monitor! For more information about...

    Free
  • Sun 24

    London Rivers Week 2026: Deptford Creek Bird Survey [FULLY BOOKED]

    May 24 @ 10:30 am - 12:30 pm
    Creekside Discovery Centre 14 Creekside, Deptford , London, United Kingdom

    Join Creekside Discovery Centre for a FREE guided bird survey along Deptford Creek and help record the birdlife that calls this unique urban waterway home....

    Free
  • Sun 24

    London Rivers Week 2026: Riverside Creativity Day outside St Mary’s Church Battersea

    May 24 @ 12:30 pm - 2:00 pm

    Badge samples by artist Shona Coyne, who will be holding a workshop at this event. BOOK HERE Celebrate London Rivers Week with a free, fun-filled,...

  • Tue 26

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

    May 26 @ 11:00 am - 12:15 pm
    Riverside Cafe Lambeth Pier, Albert Embankment, London

    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...

  • Tue 26

    London Rivers Week 2026: Brookmill Park Wade [FULLY BOOKED]

    May 26 @ 11:00 am - 2:00 pm
    Brookmill Park Brookmill Road, Deptford, London, United Kingdom

    Join Rivers & People for a free wade upstream from the Brookmill Park section of the River Ravensbourne as part of London Rivers Week 2026....

    Free
  • Tue 26

    London Rivers Week 2026: Wetland Walk at Wild Tolworth

    May 26 @ 6:00 pm - 7:30 pm
    Wild Tolworth Meeting Point Tolworth Court Farm, Chessington

    Join the Citizen Zoo team for a free guided walk as part of London Rivers Week 2026 to celebrate the completion of the wetland restoration,...

    Free
  • Wed 27

    London Rivers Week 2026: Sensory walk through Headstone Manor Park

    May 27 @ 10:30 am - 12:30 pm
    Headstone Manor Park Pinner View, London, United Kingdom

    Join the Friends of Headstone Manor Park on this free walk to discover The Copse at Headstone Manor Park as part of London Rivers Week...

    Free
  • Wed 27

    London Rivers Week 2026: Keeping Our Rivers Healthy with CABI and the Stonebridge Lock Coalition

    May 27 @ 11:00 am - 2:00 pm
    Stonebridge Lock, Waterside Café N17 0XD Stonebridge Lock, London, United Kingdom

    Drop by CABI and the Stonebridge Lock Coalition’s stalls to learn all about the local waterways, the wildlife that lives there and how we are...

    Free
  • Wed 27

    London Rivers Week 2026: Family Crafternoon

    May 27 @ 12:00 pm - 3:00 pm
    Meet at Riverside Gardens, Orpington Riverside Gardens, Orpington, Greater London, London, United Kingdom

    Enjoy a family crafternoon with South East Rivers Trust at Riverside Gardens for London Rivers Week, learning more about what lives in the river while...

    Free
  • Wed 27

    London Rivers Week 2026: A River Rights Charter for the Channelsea Creek – lecture and workshop

    May 27 @ 3:00 pm - 7:00 pm
    Loughborough University 3 Lesney Avenue, The Broadcast Centre

    Join the Climate Ecological Transitions Hub at Loughborough University London (LUL) for a River Rights Charter event as part of London Rivers Week 2026, with...

    Free
  • Wed 27

    London Rivers Week 2026: Estuary Edges – From creek to open water (FULLY BOOKED)

    May 27 @ 4:30 pm - 6:00 pm
    SE8 3GL Meet on the lifting bridge over Deptford Creek, East of 2 Creative Rd

    Join a member of the Environment Agency for a free walk around Greenwich, looking at ways to improve tidal walls for wildlife as part of...

    Free
  • Wed 27

    London Rivers Week 2026: Can London be a Wetland City?

    May 27 @ 6:00 pm - 7:30 pm
    London Zoo, Huxley Lecture Theatre, Nuffield Building, Outer Cir, London Outer Circle, London, England, United Kingdom

    Join ZSL for a (in-person) free talk on freshwater habitats and species as part of London Rivers Week. Beavers, water voles and wetlands... come and...

    Free
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Thames21
THAMES21

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Main Office location (& deliveries)

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

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

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LONDON E3 3JY

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