A huge chunk of Britain's Jurassic Coast is on the brink of collapse after an enormous crack opened at the top of a 150ft cliff.
The gaping 300ft long crevasse has split the sandstone cliff in two, meaning thousands of tonnes of earth could give way at any moment.
The section of cliff has already dropped 4ft from the mainland next to it and experts say it will collapse imminently, with walkers on the beach below urged to keep away or risk being injured or killed.
The cliff-top beauty spot above Seatown beach, near West Bay, Dorset, forms part of Britain's Unesco World Heritage Site.
It is walked by tens of thousands of ramblers a year but the unstable cliffs mean that the stretch of coast is notorious for landslips.
The same area saw one of the biggest falls in decades in April when thousands of tonnes of debris fell to the beach below.
The gaping 300ft long crevasse has split the sandstone cliff in two, meaning thousands of tonnes of earth could give way at any moment
The section of cliff has already dropped 4ft from the mainland next to it and experts say it will collapse imminently, with walkers on the beach below urged to keep away or risk being injured or killed
The cliff-top beauty spot above Seatown beach, near West Bay, Dorset, forms part of Britain's Unesco World Heritage Site
The same area saw one of the biggest falls in decades in April when thousands of tonnes of debris fell to the beach below
And just two weeks ago some 600 tonnes of rock fell from the cliffs at nearby West Bay.
Richard Edmonds, a local geologist, said the fresh crack had left the whole section of cliff dangerously unstable.
He said: 'It is no doubt a continuation of the big fall we had
