Geograph - photograph every grid square

Billed as Ireland’s most visited natural attraction, the Cliffs of Moher are a 5 mile stretch of almost sheer cliffs consisting of bands of sandstone, siltstone, mudstone and shale rising to a maximum height of over 700 feet. They take their name from a former fort called Moher (or Mhothair) which stood on the Hag’s Head, at the southern end of the line of cliffs, but which was demolished in 1808, during the Napoleonic Wars, to be replaced by the signal tower that now stands there. Near the highest point stands O’Brien’s Tower, built in 1835 by Cornelius O’Brien as a viewing point for tourists.

The Burren and Cliffs of Moher Geopark is an internationally designated area of geological interest in County Clare. It was the third Geopark to be designated in Ireland, and is recognised at both European and global levels. It is sometimes branded as "the Burren and Cliffs of Moher Global UNESCO Geopark."
The Burren comprises dramatic glaciated karst landscapes on Ireland’s Atlantic coast which have been fashioned in a variety of limestones, sandstones and siltstones originating during the Carboniferous period. The nearby Cliffs of Moher are vertical sandstone and shale sea-cliffs, the highest in Europe, which rise to a height of over 200m in places and which have long drawn sightseers to the area.