Taking part is easy, simply download the app and spend 15 minutes observing your local river and answering some simple questions.

Twice a year The Rivers Trust run a Big River Watch, and the next one takes place from 25th April to 1st May. These are week-long citizen science surveys in which everyone can take part in a simple activity that takes just 15 minutes and helps build a picture of river health across the UK and Ireland.

To restore rivers, we need more information about how they’re doing. You can help by identifying and locating the issues using the Big River Watch app, this will contribute to a national data set that will help Rivers Trusts across the country build a picture of river health.

To find out more click here.