It is nearly equidistant from Dublin, Dún Laoghaire, and Howth, and commands extensive views of the shores of the bay, with an unbroken panorama of the mountains on the south.

Howth with its heather-clad hills, bright green fields and rugged reaches of sea cliff, is very visible from this point.

It was not as high as the existing structure, it sloped much more rapidly towards the top, and was surmounted by an octagonal lantern with eight heavy glass windows.

[1] Historically, the Ordnance Survey Ireland used the low water mark of the spring tide on 8 April 1837 at the Poolbeg Lighthouse as a standard height for all its maps,[8] a practice which continued up until 1958.

[9] In 2016, a 48-year-old man drowned in the sea near the lighthouse while playing the augmented-reality video game Ingress, having possibly tripped on a raised water grate at the edge of the pier.