Bill Lynch's current issue of Set Dancing News ran a photo-spread of the Harrington's Pub set dancing workshop with Patrick O'Dea that was held July 21. [magazine subscription form here in PDF format]
Patrick taught the Loch Neigh set (music notes and dance notes source).
The Lough Neagh is the largest lake in Ireland; it is 8 miles long by 15 miles wide, according to this YouTube vido of the lake Lough Neagh. It is located in County Antrim, Northern Ireland
The Joy of Sets article by Bill Lynch