An urgent warning has been issued for holidaymakers as 48 beaches in Spain have been awarded Black Flag status.
Spills of toxic chemicals, filthy dog beaches and invasive developments have led to the damning report that could be bad news for Britons hoping to visit.
One of the report’s destinations, A Calzoa in northern Spain, was dubbed “Spain’s worst dog beach”.
According to local media, it has reportedly become a “sandbox for dogs”.
The popular destination has been tainted by dog poop, making it a less desirable hotspot for vacationers this summer.
Other beaches are those in Malaga and some in the Canary Islands, Catalonia, the Balearic Islands and the Basque Country.
Local authorities have been accused of failing to carry out proper impact assessments.
Pollution and poor management of the Spanish coast have led to the report by environmental group Ecologists in Action.
Twelve of the black flag ratings were granted due to chemical spills, poor sanitation and cleaning issues.
Six of these were due to chemical, light or noise pollution.
The report also said that more than 48 beaches named in the report were to suffer the same fate.
Some of them have been denied that title due to biodiversity impacts, marine debris, dredging and over-development in the holiday hotspots.
An urgent bank holiday warning follows for Brits looking to visit another Spanish beach.
Holidaymakers are being warned not to strip in the heat – because if they go topless on the Spanish island of Mallorca they could face a hefty fine.
Anyone found roaming the streets without a top or bathing suit could face a fine of up to £2,500.