Between 15,000 and 30,000 pilgrims participate, compared to a yearly 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 are involved, including the local Mayo Mountain Rescue Team, for whom it is the busiest day of the year. Also involved is the Air Corps, Irish Cave Rescue Organisation (ICRO) the Order of Malta, Civil Defence Ireland and members of An Garda Síochána. 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.