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. The ground floor of the castle is open to the public and houses an exhibition on the history and restoration of the building and the de Burgo family. As this site is managed by the OPW, school tour visits are permitted free of charge provided certain conditions are met.