Twice a year we run Big River Watch weeks. where we invite you to take part in a simple citizen science activity that helps build a picture of river health across the UK and Ireland. The next Big River Watch will take place between 6th-12th September 2024.

Our rivers are far from healthy. They’re polluted with sewage, plastic, chemicals and nutrients, and just 15% of river stretches in England are in good overall health. This isn’t good enough.

When it comes to restoring our rivers, we need even more information about how they’re doing. You can help us identify and locate the issues.

So whether you’re a swimmer or a paddler, an angler or a rambler, a wildlife spotter or a sit-and-watch-er, download the app and complete the quick survey today! However you love your river, Big River Watch is a chance to be part of the movement improving our freshwater spaces. With our app, you can contribute to a national data set that will help us build a picture of river health.