The Our Rivers campaign is running a national survey about local rivers. The survey is online and only takes a couple of minutes to complete (I just did so).

If you've not come across this organisation before, which I hadn't, they were apparently formed in 2009, led by WWF-UK, RSPB, the Angling Trust and the Salmon and Trout Association. They are on a mission to take up the slack left by the government in its ambitions for Britain's rivers.