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The Big River Watch
6 September - 12 September
FreeSurvey your local river between 6th–12th of September and be part of our UK and Ireland-wide survey of river health.
Did you know? There’s a free and easy way to help your river.
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.