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| 'Biggest cave' is Calders Geo in Shetland at Esha Ness | 'Biggest cave' is Calders Geo in Shetland at Esha Ness |
| (about 1 hour later) | |
| The biggest cave in Britain can be found in Shetland, a geologist has claimed. | The biggest cave in Britain can be found in Shetland, a geologist has claimed. |
| Jonathan Swale used a laser range-finder at the Calders Geo sea cave at Esha Ness. | |
| He said he found it to be 60ft tall and spanning a floor area of 5,600 square metres. | |
| Mr Swale said this made it one-and-a-half times as big as the famous Cheddar Gorge in Somerset. | |
| The geologist said the largest cave crown now seemed to belong to Shetland. | |
| Mr Swale told BBC Scotland of his laser range-finder study: "This is possibly the biggest cave chamber in Britain and that's what tempted me to come back." |