The stone that Oisín lifted is called the Oisín Stone and can still, 1,500 years later, be seen in Gleann na Smól (the valley of the thrushes). The Oisín Stone is only a good walk from Seefin to the lower valley.
The Fiannachta tales also described how Fionn would look across the Dublin bay to Beann Eadair (Howth) from Seefingan and that he would hunt in Gleann na Smól with his favourite wolfhounds Bran & Sceolán. All this is so true, romantic and magical.
We also must remember that while the Fianna warriors walked Seefin some 2000 years ago;
From Kippure Estate let us follow in the footsteps of our ancient ancestors from the Stone Age to the Iron Age – their druids, the warrior division of the Iron Age Fianna, on to the top of magical SeefinMountain. There, after a 1.5 hour walk, you will discover the 5000 year old Seefin megalithic tomb or passage grave. The nearby hills of Seefingan and Seahan also have pre-historic unopened cairns on their peaks. It is said that on a clear day you can see the world renowned passage grave at Newgrange in Co. Meath and that Seefin was deliberately built to be seen from Newgrange.