Ellenabeich The beach in Ellenabeich is made out of slate. The entire Isle of Seil is a big chunk of slate set out in the Atlantic, with Ellenabeich on its far western tip. For years, Ellenabeich, and the surrounding quarries, were at the centre of the world’s slate industry, with over 8 million slates a year being exported by the early 1900s. Slate quarries are documented in the area dating back to the 1500s. The Isle of Seil In 1881, a storm caused Ellenabeich’s main quarry