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 & Events

Balsam Bash at John O Jerusalem
01/07/26
Wednesday 1 July 2026 - Balsam Bash at John O Jerusalem
Balsam Bash at Rossmill
18/06/26
Thursday 18 June 2026 Balsam Bash at Rossmill
Mersey Valley Way Guided Walks
12/06/26
Summer guided walks on the River Mersey
Bracken Control: Tegg's Nose Country Park June
03/06/26
Wednesday 3 June. We're joining the Bollin Valley Partnership again to help control bracken and preserve valuable habitat at Tegg's Nose Country Park, Cheshire.
Mersey Rivers Week 2026
02/06/26
Join the Mersey Rivers Trust team at Mersey Rivers Week events in June and July 2026
Mersey Valley Way Official Opening
21/05/26
Baroness Hayman, Access Minister officially opens the Mersey Valley Way, England's first national river walk
Bracken Control at Tegg's Nose Country Park
20/05/26
Wednesday 20 May. We're joining the Bollin Valley Partnership to help control bracken and preserve valuable habitat at Tegg's Nose Country Park, Cheshire.
Big Give Earth Raise 2026
22/04/26
It's the Big Give Green Earth Raise Week 2026: all donations doubled! Please help us if you can...
Big River Watch April 2026
21/04/26
Big River Watch 24th - 30th April 2026
River Mersey Guided Walk & Litter Pick: Mersey Valley Way in Stockport
29/03/26
Sunday 29 March
Mersey Valley Way March Newsletter
25/03/26
Mersey Rivers Trust is delighted that the River Mersey in Greater Manchester has been selected for the first national river walk. Read about the progress in delivering the "Mersey Valley Way" in our March 2026 Newsletter.
Coppicing and dead hedging at Newgate Nature Reserve, Wilmslow
03/03/26
Tuesday 3 March. We're joining the Bollin Valley Partnership to undertake coppicing and dead hedging work at Newgate Nature Reserve, Wilmslow.
Battling the Birch at Lindow Common, Wilmslow
25/02/26
Wednesday 25 February. We're joining the Bollin Valley Partnership to help conserve the special habitat within Lindow Common in Wilmslow by removing self-seeded Birch.
Urban Riverfly Monitoring Upskill
18/02/26
Wednesday 18 February. Join us for a 1 hour online training webinar that builds skills in riverfly (invertebrate) monitoring, identification, data collection, and urban water quality.
Alt Weir Removal Planning
17/02/26
Plans are currently being explored for removal of the only major weir on the River Alt which is a barrier to fish migration
River Mersey Guided Walk & Litter Pick on the Mersey Valley Way, Stockport
06/02/26
Friday 6 February 2026
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