Tarbarrels and bonfires were lighted along the coastline of the four seas on the summits of the Hill of Howth, Three Rock Mountain, Sugarloaf, Bray Head, the mountains of Mourne, the Galtees, the Ox and Donegal and Sperrin peaks, the Nagles and the Bograghs, the Connemara hills, the reeks of M’Gillicuddy, Slieve Aughty, Slieve Bernagh and Slieve Bloom.