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Calder s geo cave 2015 in 2015 sea kayaking around scotland
Calders Geo is an inlet in the western cliffs of Esha Ness in Northmavine on the island of Mainland, Shetland, Scotland. A cave on the north side of the geo has been measured at more than one and a half times the size of "The Frozen Deep", a chamber in Reservoir Hole under Cheddar Gorge in Somerset, potentially making it the largest natural chamber in Britain.
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Geologist Jonathan Swale used a laser range-finder to measure the interior of the cave, which is only accessible during calm seas. He claims that the structure is over 20 metres (66 ft) tall and has a floor area of around 5,600 square metres (60,000 sq ft).
Esha Ness Lighthouse just south of the geo was designed by David Alan Stevenson and commissioned in 1929.
Nara quartet calder s geo
References
Calder's Geo Wikipedia(Text) CC BY-SA