A tractor pulls the seaweed while another stacks it in the sand during collection in Asturias, north of Spain ( Image: LightRocket via Getty Images)

UK - Holiday warning: Brits told to put up with miles of 'smelly, rotten sludge' on beaches

Environmentalists have asked local authorities not to remove sea algae from beaches as it is part of marine life and helps in the fight against climate change

But they have asked local councils not to remove them as it is all part of marine life and conservation and the fight against climate change.

The so-called "posidonia" or "sea grass" on Spanish beaches is already protected in parts of Alicante where the local authority has approved an order to protect it at all costs.

The oceanic Posidonia is a natural plant in the Mediterranean

The oceanic Posidonia is a natural plant in the Mediterranean ( Image: Universal Images Group via Getty Images)

Other resorts across Spain are considering delaying the removal of the miles of sludge, despite beach users avoiding or having to wade through sludge to reach the sea.

The Spanish Institute of Coastal Ecology has recommended delaying the removal of posidonia until the arrival of high season.

Valencia council has had to remove some sea grass on busy beaches because of very hot weather but has introduced conservation measures which will not please tourists.

The Coastal Ecology Institute says: "Algae and marine plant debris have an important ecological role to play in coastal ecosystems, especially in the sedimentary balance of beaches and coves.

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