The Big River Watch

A fun, free and easy way to help our rivers

Twice a year, The Rivers Trust movement runs a Big River Watch.   The next one runs from 19 – 25th September. 

We need your help to survey rivers using the free Big River Watch app.   Anyone can take part in this week-long citizen science survey to build an important picture of river health across the UK and Ireland.

Our rivers are far from healthy.  To restore them, we need more information about how they're doing.  

With the free Big River Watch app, you can help us identify the issues and problems, which help us influence policymakers and hold polluters to account.

For full details and information on how to download the free Big River Watch app, please visit the Rivers Trust website: https://theriverstrust.org/take-action/the-big-river-watch

News

River Mersey Guided Walk & Litter Pick: Mersey Valley Way, Stockport
Friday 23 January 2026
Mersey Valley Way
Mersey Rivers Trust is delighted that the River Mersey in Greater Manchester has been selected for the first national river walk
Litter Raft in Manchester
Adventure filmmaker Raphael Holt raising awareness of the litter & flytipping issues facing Manchester’s waterways
Manchester College Water Quality STEM Session
Soil and Water Health Day
Thursday 30th October
We are hiring ! Finance & Governance Manager
🌿 Join Mersey Rivers Trust and Help Make a Real Impact for Rivers, Wildlife and Communities! 🌿 
Vision for Sustainable Water Management in Liverpool City Region
Ambitious new vision to clean up rivers, prevent flooding and maintain water supplies
Battling the Birch at Lindow Common - November 2025
Wednesday 19th November 10am - 3pm
Battling the Birch at Lindow Common - October 2025
Wednesday 15th October, 10am - 3pm
Lindow Moss Free Family Fun Day
Sunday 31 August, 10am to 3pm
Quarry Bank Guided Nature Walk
Thursday 21 August, 11am to 1pm
Water Net Gain
The water net gain (WNG) project is a catchment scheme where farmers are paid to store water on their land in ponds which can act as ‘water batteries’.
New Mersey Rivers Youth Forum Launched!
We are pleased to announce the launch of our new Mersey Rivers Youth Forum for Greater Manchester.
Mersey Rivers Week 2025
It's Mersey Rivers Week: 14-19 July 2025
Bollin Pollution Education
This education campaign aims to reduce the risk of future pollution events from Lyme Green industrial estate thereby preventing serious impacts to fish and other aquatic ecology in the River Bollin.
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