Below the old quarry workings, in this granite rich bay, lie huge hard rock boulders, gradually, imperceptibly being smoothed and rounded by the constant action of wave generated attrition. The mountains behind reach almost 2000ft but here on the shore, it's foundations are gradually being eroded away.
From my book
"Nant Gwrtheyrn - Y Swyngyfaredd (The Enchantment)" available here on my website
The deserted valley and quarrying village of Nant Gwrtheyrn, North Wales. Now restored as a Welsh language & conference centre.