• Hand wearing a blue glove holds a water sample positioned between two Hanna checkers in a nature background

    Water quality data collected by volunteers used to fix sewage pollution

    In 2024, volunteers from the River Ching Action Group discovered a massive spike in the concentration of ammonia during their regular water quality testing. They passed the data on to the…

  • Water quality at Wallingford Beach improves in second bathing season

    Wallingford Beach, which gained official bathing water status in May 2024, has been rated “Sufficient” for its second designated season – an improvement on last…

  • CAMPAIGN WIN! New law bans plastic wet wipes to protect rivers and seas

    The Government has officially passed legislation banning the sale and supply of wet wipes containing plastic in England – a huge win for our volunteers,…

  • Welcome to Thames21

    We reconnect people to nature by helping them enjoy, protect and enhance their local rivers.

    Whether it’s the Thames or one of its many tributaries, we offer inspiring ways for communities to get down to their local riverbank.

    Rivers, canals and stretches of open water are the perfect antidote to urban living – which is one of the reasons thousands of volunteers help us rewild and protect them every year.

    Our aim is to rebuild the relationship between communities and their rivers; restoring river health and boosting wellbeing and community cohesion in the process.

    Feeling inspired?  Find out more