Arran, in the Firth of Clyde, is an island whose charms vary with the seasons. In summer, the hills are verdant. By midwinter, there is a grandeur of rock and snow. These days, the attractions are enhanced by a better class of visitor. Time was, when it suffered from proximity to Glasgow, but the Gorbals-ites who want to start the morning with a cocktail of Buckfast and Irn-Bru now do so in Torremolinos.