Macroom is a small market town in County Cork, set where the fertile Lee Valley begins to give way to rougher uplands on the road toward Kerry. It is not a grand destination, but it has a good one-day shape: a castle gate in town, a strange drowned wetland nearby, and several hard-edged pieces of Irish history in the surrounding countryside.
The strongest reason to stop is The Gearagh, a former oak forest now flooded into a wetland of water, reeds, and dead tree stumps. It is eerie, quiet, and unlike the usual Irish ruin or scenic overlook.
Macroom also carries the marks of conflict. Macroom Castle anchors the town centre, while the Michael Collins Monument lies to the south at the site of the 1922 ambush that killed one of modern Ireland's central figures. With a car, the town makes a worthwhile Cork-Kerry stop rather than just somewhere the bus passes through.