Episode 1: The Lough Crew Cairns: Loughcrew or Loch Craobh, meaning ‘lake of the tree’ is home to a group of ancient tombs from the 4th millennium BC, some decorated with rare megalithic art, which sit on top of a range of hills

The hills and tombs are together known as Slieve na Calliagh (Sliabh na Caillí) or “mountain of the Cailleach.” “The Storied Hills” or “Mountain of the Witch” Legend has it that the monuments were created when a giant hag, striding across the land, dropped her cargo of large stones from her apron. The Cailleach is a divine hag and ancestor, associated with the creation of the landscape and with the weather, especially storms and winter, hag is sometimes synonymous with the word crone.  

She may also be one of the chosen forms of shapeshifting deities, such as The Morrígan or Badb, who are seen as neither wholly benevolent nor malevolent