Carrigogunnell Castle
Three kilometres north of the village, a ruined tower house sits on a 60-metre plug of volcanic rock looking out over the Shannon Estuary. There has been a fortification here since at least the 13th century; the tower you see now was largely the work of the O'Briens in the 15th century. It changed hands repeatedly through the Desmond wars, was held against the Williamites in 1691, and was slighted - deliberately blown up so it could never be defended again - in September of that year after the second siege of Limerick. The folklore is better than the history: the name means rock of the candle, after a hag named Grana who lit a candle on the rock each night, and any sailor who saw it and did not look away was found dead in the morning. A local hero put out the candle and broke the spell. The climb is short but the footing is loose, and the view from the top is the best thing in this corner of Limerick.