A noted beauty-spot , the lake with its Abbey behind , appears on many postcards. ( The Abbey is actually a Victorian 'castle' built by a wealthy Liverpool cotton merchant , Mitchell Henry M.P.) It was taken over by a group of Benedictine nuns who moved there from Ypres during the First World War , and opened and exclusive boarding school for girls , which is still there. Parts of the Abbey are open to visitors; there is a craft shop and tea-room. Like so much of Connemara , the area is noted for angling.