The Kerry Way Ultra Nite 101K, 101km follows a portion of The Kerry Way a route through the Old Red Sandstone mountains of Kerry, touching Irish history, archaeology and folklore.

The Kerry Way traverses one of Ireland’s most spectacular mountain ranges with magnificent coastal views, lakes, moorlands and lonely glens with a mixture of tarred roads, lanes, bogs and mountain passes underfoot. It is approximately 200km of roads, lanes, trails, paths and hills, running parallel to The famous Ring of Kerry road on the Iveragh Peninsula and is a route through the Old Red Sandstone mountains of Kerry. The Way touches Irish history (old butter roads, famine graves, abandoned villages), archaeology (hilltop burial chambers, standing stones, ogham writing) and folklore (tales of the Fianna warriors and their escapades).

The Kerry Way UltraNite starts in Dromid, Waterville and ends in Killarney town, with a maximum race time of 26 hours, this event is open to runners who have completed two marathons since Sept 2023. It is a single stage, self-sufficient ultramarathon, with limited access for race support crews.