This magnificent wreck stands on a rise above the junction of the R476 and R480 on the way from Kilfenora to Kilnaboy or Carron. Erstwhile home of Máire Rúa (Red Mary) who – according to local anecdote – got through 25 husbands, dispatching at least one to a grisly death on horseback off the Cliffs of Moher, before being incarcerated in a hollow tree by her enemies, a fate commemorated by her red-haired ghost that stalks the castle ruins to this day.