A foggy day in Limestone country. It did look, mid morning, that the fog would burn off but it actually became denser. So no stunning views today. The Yorkshire Dales contain some of the best examples of upland limestone pavements in the country. Limestone is soluble in water and over the millennia rain penetrates faults and weaknesses in the rock forming crevices which are ecological refuges for many wild flowers and ferns adapted to limestone soils, safe from the weather and hungry sheep. The local name for these crevices is ‘grikes’ whilst the remaining columns are ‘clints’. This limestone pavement was on the foothills of Ingleborough north of the village of Austwick.