Huge parts of Britain's coastline remain polluted by untreated sewage being pumped into the ocean - and the scale of the problem has been revealed in an updated map showing the grimmest beaches in the country.
The website Surfers Against Sewage continues to track real-time combined sewage overflows (CSOs), which helps monitor the water quality in areas across the country - including some of Britain's most popular beaches.
The group estimated "over 400,000 discharges of untreated sewage into UK rivers and almost 5,500 discharges into UK coastal bathing waters".
