Oldcourt Castle is a good example of a quadrilateral Norman Castle. It appears that the castle may have once had more floors than the remains show, but there is no evidence to support this. Strangely, there are some steps on the outside of northeast tower.
One place of interest worth visiting from here is Birr in County Offaly. This is the home of Birr Castle, the seat of the Earls of Rosse. The third earl invented the great telescope, which was the largest and most powerful telescope of it’s day and is now housed in the science museum in London.
Angling on Lough Derg requires local club membership, available at the local tackle shop in Portumna. There are some good bays around the town, and good bream and rudd fishing in the Shannon and some trout in Lough Derg. Pike is also available, the best months are March to May, and October.
The harbour walls and quays provide good coarse fishing, as does the shore of the lake, with particularly good coarse fishing around Carrigahorig bay.