Cardys Rock
The Lookout Post No. 4 was located near Balbriggan in the northern part of Fingal. Today, all that remains of the former post is the concrete base with the typical six-sided figure. In addition, parts of the chimney and the roof can be found under the grass. The lookout post got its name from a group of rocks that rise about half a mile off the coast of Bremore Point. The associated EIRE sign can no longer be located today.