 Sunshine hours are typically highest around the coasts, especially to the west.The earliest settlers on Islay were nomadic hunter-gatherers who may have first arrived during the Mesolithic period after the retreat of the Pleistocene ice caps.A flint arrowhead, which was found in a field near Bridgend in 1993 and dates from 10,800 BC, is amongst the earliest evidence of a human presence found so far in Scotland.