Castle Island, Lough Key - 4 Things to Know Before Visiting

McDermott’s Castle has a rich and eerie history that dates back to the 12th century. It is situated on Lough Key lake in County Roscommon in north-central Ireland. It was built in the 12th century on what has since been known as Castle Island. Though the isle holds several structures which date to various historical periods, the story of McDermott's Castle began with the titular clan itself.

Lough Key is a lake in Ireland. It is in the northwest of County Roscommon, northeast of the town of Boyle. The lough is believed to be named after a mythical figure named Cé. The lake is several kilometres across and contains over thirty wooded islands including Castle Island, Trinity Island, Orchard Island, Stag Island, Bullock Island, and Drumman's Island. Castle Island has had a number of structures built on it over the centuries.

This is a faormal beautiful monastery and National Monument located in Lough Key, Ireland. It is located on Church Island, an island of 2.1 ha in the western part of Lough Key.

Stag Island is next to Stag Island and is located in Roscommon, Connaught, Ireland. It has a length of 0.78 kilometres.

Lough Allen is a lake on the River Shannon in northeastern Connacht, Ireland. Most of the lake is in County Leitrim, with a smaller part in County Roscommon. The lake lies to the south of the River Shannon's source, near the Iron Mountains, and is the uppermost of the three main lakes on the river. The other two, Lough Ree and Lough Derg are much further to the south.

Boyle Abbey, situated in the town of Boyle, County Roscommon, is a well preserved monastery that was founded in the 12th century. Today, only small parts of the cloister remain, as the Elizabethans converted it into barracks in 1592 and the Cromwellians besieged it in 1645. Despite its ruined state, the abbey continues to be an excellent example of Ireland’s early Cistercian foundations.It was the first Cistercian monastery to be successfully founded in the province of Connacht.