Last week I managed to take a short holiday and went up to Scotland, venturing north of Glasgow for the first time in years. I went out to the islands, taking a trip to Mull and the smaller islands of Staffa and Iona. Staffa is a tiny place with no residents, but a lot of tourists visit to admire the basalt rock columns and the awe-inspiring Fingal’s Cave. Fifty million years ago, a lava flow cooled, contracted and fractured to form an amazing landscape of polygons. It was a very fashionable

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