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volunteer

Totally Thames: River Litter Detectives – Sands End

Book your place here! Come along and join Thames21 as a river citizen scientist on the River Thames. We will collect the litter we find…

Totally Thames: River Litter Detectives – Limekiln Dock

Book your FREE place here! Come along and join Thames21 as a river citizen scientist on the River Thames. We will collect the litter we…

River Litter Detectives – Bishop’s Park

BOOK YOUR PLACE NOW Come along and join Thames21 as a river citizen scientist on the River Thames. We will collect the litter we find…

River Litter Detectives – Bishop’s Park

BOOK YOUR PLACE NOW Come along and join Thames21 as a river citizen scientist on the River Thames. We will be collecting the litter we…

London Rivers Week 2025: River Litter Detectives – Limekiln Dock

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

Sands End River Clean Up & Litter Detectives

Come along and join Thames21 as a river citizen scientist on the River Thames. We will be collecting the litter we find and categorising it…

Latest News

  • Thames21’s response to London Assembly Committee’s ‘Swimmable Rivers’ report
    Thames21 welcomes this report, which has 12 recommendations for creating clean and healthy rivers in London. These proposals strongly reflect our long-standing calls for action on water quality, biodiversity, and public...
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    Thames21
    THAMES21

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

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    Registered Charity number: 1103997

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