Have you ever looked at a river and wondered where all the water has come from? Or where it is going to? My name is Seren and today I'm investigating the UK's longest rivers. This is the River ...

The Wye is perhaps the most extreme example, but the nearby River Severn, the UK's longest river, is also at risk, along with rivers in places such as Lincolnshire, Norfolk and Yorkshire.

In Gloucestershire, England, “bore rider” Ben Rogers surfs the river Severn, one of the UK’s longest rivers, which runs several hundred kilometres from mid-Wales to the Bristol Channel.

The Wye is perhaps the most extreme example, but the nearby River Severn, the UK’s longest river, is also at risk, along with rivers in places such as Lincolnshire, Norfolk and Yorkshire. In the land ...