Karst of Ireland, the Burren, Clare County, it looks like Big Island of Hawaii.
Cliffs of Moher, amazing view. Especially left hand side walk is quite nice.
Cliffs of Moher and Galway City Day Tour from Dublin
Have a perfect day trip away from the city! Visit the Cliffs of Moher, one of the most famous spots in Ireland and take in spectacular views. Spend time at the lively city of Galway before returning to Dublin.