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  • Volunteers standing on the foreshore.

    River Litter Detectives – Queenhithe

    Queenhithe, City of London by the Queenhithe Mosaic, City of London, London, United Kingdom

    Book your place HERE! Come along and join Thames21 as a river citizen scientist on the River Thames. We will be collecting the litter we...

  • Riverfly Training

    Salisbury House Bury Street West

    Thank you for your interest in becoming an Urban Riverfly Monitor! For more information about the Urban Riverly scheme, which was developed by the Riverfly...

    Free

  • Dollis Brook Balsam Bash

    Dollis Brook, Whetstone Stray 21 Longland Drive, Barnet, United Kingdom

    Bring the Dollis Brook back to life! Join us this summer in removing invasive non-native species (INNS) and litter from the Dollis Brook, supporting the...

    Free

  • Gores Brook Revival

    Gores Brook Dagenham Avenue, London, Greater London, United Kingdom

    Bring the Gores Brook back to life! Join us this summer in removing invasive non-native species (INNS) and litter from the Gores Brook, supporting the...

    Free

  • Gores Brook Revival

    Gores Brook Dagenham Avenue, London, Greater London, United Kingdom

    Bring the Gores Brook back to life! Join us this summer in removing invasive non-native species (INNS) and litter from the Gores Brook, supporting the...

    Free

  • Action for Silk Stream – Tree labelling activity

    Watling Park Watling Park, Edgware, United Kingdom

    Join us in the orchard at Watling Park this summer holiday. We will labelling the newly planted trees in the orchard, decorating wooden and metal...

  • River Action Day

    Join us for free our Action for Silk Stream monthly volunteering days. Please book here: Action for Silk Stream River Action Day - Thames21 Limited...

All our events and activities are open to communities.

Corporate groups, please book with Thames21 using our corporate volunteering page