Reek Sunday (Irish: Domhnach na Cruaiche) or Garland Sunday is an annual day of pilgrimage in Ireland. On the last Sunday in July, pilgrims climb Ireland’s holiest mountain, Croagh Patrick (764 metres) in County Mayo, some barefoot. The pilgrimage has been held yearly for about 1,500 years. It is held in honour of Saint Patrick who, according to tradition, spent 40 days fasting on the mountain in the year 441.
Between 15,000 and 30,000 pilgrims participate, compared to an annual climbing total of more than 100,000. The Archbishop of Tuam leads the climb each year. Up to 300 personnel from eleven mountain rescue teams from across Ireland, including the local Mayo Mountain Rescue Team, for whom it is the busiest day of the year, as well as the Order of Malta, Civil Defence Ireland and members of An Garda Síochána are involved in the climb. Injuries ranging from cuts and broken bones to hypothermia and cardiac arrest occur each year. The climb takes two hours, on average, and one and a half hours to descend.
Details and times of Mass could be found here: Wesport Parish