crapslaw i'm 57 years living here and still haven't seen half of the country,if your into history ireland has loads to offer .northern ireland is great cycling country narrow roads plenty hostals and campsites be prepared to pay 15 pounds for campsites in n/ireland.
if you get the weather there's no better place to ride your bike.
i reckon if you were to pick caretakers brain he would give you some good places to visit/tour.