The monument commands sweeping views across the district, with the Atlantic Ocean visible just three kilometres to the north. Local folklore once knew it as ‘the bed of Diarmuid and Greine’, linking this stone structure to the tragic lovers of Irish mythology.

The gallery grave stretches approximately 8.5 metres in length and is divided into two distinct chambers, set within a low, grass-covered mound. The eastern chamber, measuring three metres long and 2.4 metres wide, is framed by massive stone orthostats; some reaching heights of 1.8 metres. Particularly striking are the segmenting jambs that separate the two chambers, positioned longitudinally inside the gallery walls and featuring two septal stones between them. The western chamber, slightly longer at 3.5 metres, narrows from 2.5 metres at its centre to just 1.9 metres at its open western end, with its sides formed by somewhat lower stones than those in the eastern section.

What makes this monument particularly intriguing is its entrance configuration at the east-south-east end, where doubled jambs mark what archaeologists believe was the original entrance, though no trace of a court remains today. Writing in 1867, the antiquarian known as ‘Maghtochair’ recorded that a circle of stones, approximately 64 metres in circumference, once enclosed the entire gallery; though this feature has long since vanished. Several displaced stone blocks scattered around the site, including what may be a fallen lintel measuring 2.1 by 1.1 metres, hint at the monument’s original grandeur and the architectural sophistication of its Neolithic builders.