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?


If you don’t see an event on your local waterway or have a suggestion for work you would like to see us doing, let us know.

We also run special annual events in partnership with others

One is the Three Rivers Clean Up, which ran for the ninth year in June 2017.
Another is London Rivers Week, a series of walks and talks to celebrate London’s rivers, run in partnership with the London Rivers Restoration Group, which was held for the second year running in 2017, at the end of June.

Welsh Harp Environmental Education Centre

At our education centre in Brent, we offer curriculum linked outdoor learning sessions, community volunteering opportunities, and venue hire. Visit our Welsh Harp page for details.