54°31′41″N 0°44′32″W / 54.52801°N 0.7421°W / 54.52801; -0.7421 The Hob Holes are caves in the cliffs of Runswick Bay, Scarborough, England which resulted from mining for jet – fossilised wood which is valuable as a gemstone. A hobgoblin was reputed to live there.[1]
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