Mersey Rivers Trust
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21/04/26

Big River Watch April 2026

Big River Watch 24th - 30th April 2026

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On your marks... less than 48 hours until the return of the national #BigRiverWatch!

Help your local river by heading outside to gather some data and reporting it via the Big River Watch App:

1. Visit the Rivers Trust Big River Watch webpage:  The Big River Watch | The Rivers Trust

2. Download the free survey app

3. From Friday, take a stroll along your nearby river

4. Fill out the quick survey on the App to tell us what you see

All data collected will help to build an important picture of river health across the Mersey and other rivers across the UK and Ireland.   

Your help is very much appreciated !

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News & Events

Big River Watch September 2026
04/09/26
The Big River Watch 2026 is coming!
Alt weir removal scheduled
02/09/26
Exciting Update on the River Alt weir removal
River Alt Weir
Planning and design work to remove the disused River Alt weir
Wilmslow Bioblitz
08/08/26
Join us for a family-friendly Bioblitz on Saturday 8 August 2026
Unlocking the River Bollin
03/08/26
Restoring Fish Migration at Wilmslow Park
Merseyside pupils design their perfect river
23/07/26
Local pupils design their ideal river in our collaboration with schools and local partners
Kirkby Bioblitz
23/07/26
Join us for a family-friendly Bioblitz on Thursday 23rd July 2026
Croxteth Bioblitz July 2026
04/07/26
Join us at Croxteth Park on Saturday 4th July as part of Mersey Rivers Week
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...
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