An ancient forest which dates back more than 7,000 years is slowly being uncovered by the ocean.
Tree stumps and felled logs, which have been preserved by peat and sand, are now clearly visible along a 200 metre stretch of coastline at Low Hauxley near Amble, Northumberland.
Studies of the ancient forest, which existed at a time when the sea level was much lower and Britain had only recently separated from what is now mainland Denmark, have revealed it would have consisted of oak, hazel and alde trees.
The forest first began to form around 5,300 BC but by 5,000 BC the encroaching ocean had covered it up and buried it under sand.
Now the sea levels are rising again, the remnants of the forest are becoming visible and being studied by archaeologists.
Doctor Clive Waddington, of Archaeology Research Services, said:
The forest existed in the late Mesolithic period, which was a time of hunting and gathering for humans.
Dr Waddington, who says evidence has been discovered of humans living nearby in 5,000 BC, added: