If you drive up the Horseshoe Pass just outside Llangollen in North Wales and know where to turn off you will find the Blue Pool. These days it is also known as the Blue Lagoon and it is a popular swimming spot, but for experienced swimmers only! It is 40 feet deep and can be icy even in warm weather. When I knew it first, I was a child and there was none of that! Cars were rare and it was considered remote and dangerous! Therefore for me it was mysterious. We would travel from my home in the Black Country to the bliss of the open spaces of North Wales! If I was lucky early on Sunday morning, before church, we would drive up to see the Blue Pool. Sometimes it was misty, making it doubly dangerous and slightly sinister! No one swam in it then but I loved it! Nowhere in the world, and I’ve travelled a bit, have I seen water quite so blue as it is in memory! You can talk to me about copper sulphate levels and tell me the history of the slate mining that made it! But for me its seems primeval, beautiful and as old as time!