Skomer is a very carefully protected Conservation Area because of a unique bio-diversity and because it is home to very large populations of Puffins (40,000) and Manx Shearwater (700,000) – both species living in burrows rather than surface nests or cliff faces as do the thousands of other birds there. That’s on an island that’s just 1.9 by 1.2 miles in size. As a result of the burrowing, most of the island is peppered with holes and the ground around them is very fragile, so visitors must always keep to the predefined pathways.
