 <unk> Island lies off the coast of County Mayo and is Ireland 's largest island . It is a popular tourist destination for surfing and contains 5 Blue Flag beaches and <unk> one of the worlds highest sea cliffs . <unk> homes , built during the 17th , 18th and 19th centuries in <unk> , <unk> and neo @-@ Gothic styles , such as , Castle Ward , <unk> House , <unk> House , <unk> Castle are also of interest to tourists . Some have been converted into hotels , such as <unk> Castle , Castle Leslie and <unk> Castle . 
