PORTUMNA CASTLE Portumna Castle and Demesne occupy a magnificent location on the shores of Lough Derg on the River Shannon. Although gutted by fire in 1826, the Castle is still an imposing example of Irish architecture of the early 17th Century. Built before 1618 by Richard de Burgo, 4th Earl of Clanricarde, the castle became the main seat of the de Burgo family for over 200 years.
Lough Derg, is the southernmost of the three large lakes of the River Shannon, with shorelines in Counties Clare, Galway and Tipperary. It was once part of an important routeway of the Shannon that connected Limerick to Dublin via the canal system.
Castlebawn on Lough Derg is a beautifully restored Tower House. Unfortunately it has been flooded as the River Shannon rose due to the recent stormy weather. In this photo it looks like it is sinking into Lough Derg. http://imgur.com/nrzSwhW (28.12.15)