Inside the spectacular cave under a city's streets
A rare glimpse inside a spectacular secret cave under the streets of suburban Bristol.
Pen Park Hole is a natural wonder which was recently declared a Site of Special Scientific Interest (SSSI).
At street level, you would not know it existed because it is hidden 25 metres under Southmead on the edge of Bristol.
±«Óãtv Inside Out has been given a rare opportunity to see inside the cave with a group of intrepid explorers.
Linda Wilson from the University of Bristol and Chris Westcott from Natural England also provide an insight into the natural history of the cave.
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