The site is on private property and is not open to public access. The hill is above sea level and so visible from many places in the surrounding area. The best view of the site is from the Old Kilcullen churchyard in Old Kilcullen (where there is also a round tower), which is free and open to the public. Dún Ailinne should not be confused with the Hill of Allen (Cnoc Alúine), which is to the northwest.