Dry stone walls are a feature of the Gower Peninsula in South Wales, exhibiting many types of local rock, sometimes with fossils. The unevenness with which the rock surfaces are colonised by lichen depends on the composition of the rock, and the length and degree of exposure of each stone to the elements. These walls may collapse when people try to climb over them. The reconstructed wall will not always be exactly the same as before. The stones can therefore have an uneven coverage of wear and lichen. [This series of photographs was taken beside the path from Rhossili village towards the Worms Head Causeway].