John Downes was for many years a tutor on geology courses for the Open University. This book demonstrates his extensive research, and his love of the Pembrokeshire landscape. 'When you are out exploring the coast or walking the hills of Pembrokeshire', he says, 'this book should be your companion and guide to the magic of the rocks. I hope you will enjoy visiting some of my favourite geological localities, which I have described and explained in the book.'