Shenick Island or Shenick's Island is an island that lies east of Skerries

Skerries, Dublin

-The 20th century and today:Historically, Skerries has been a thriving fishing port and a major center of hand embroidery. In the late 20th century, it became a resort town , and another suburb for commuters to the city of Dublin....

, County Dublin

County Dublin

County Dublin is a county in Ireland. It is part of the Dublin Region and is also located in the province of Leinster. It is named after the city of Dublin which is the capital of Ireland. County Dublin was one of the first of the parts of Ireland to be shired by King John of England following the...

, Ireland

Republic of Ireland

Ireland , described as the Republic of Ireland , is a sovereign state in Europe occupying approximately five-sixths of the island of the same name. Its capital is Dublin. Ireland, which had a population of 4.58 million in 2011, is a constitutional republic governed as a parliamentary democracy,...

. It is populated only by seals, that harbour on the western side of the island and a few different species of seabirds nest there. It may be reached by boat but at low tide you can reach it by crossing a sand bank.

The most prominent feature on Shenick Island is a Martello tower

Martello tower

Martello towers are small defensive forts built in several countries of the British Empire during the 19th century, from the time of the Napoleonic Wars onwards....

. It is possible to climb into this with some effort.