O’Flaherty tower house of about 1500 beside Lough Corrib with its rare double bawn. OPW, guided tours March to October. Just past our 20 km line but worth it.

Norman keep of 1240 in the best-preserved walled town in Ireland, 25 minutes by train from Ceannt Station. Archery and medieval dress-up at the Heritage Centre.

Franciscan friary of 1250 by the Clare river, open to walk around any time. Ten minutes on the Tuam road.

Fifteenth-century tower on the shore at Oranmore, still lived in. Opens in summer for tours and the occasional concert.

The photographed one, on Galway Bay at Kinvara. Exterior and grounds open; check for the medieval banquets. Half an hour south.