Croagh Patrick, nicknamed the Reek, is a 764 metres (2,507 ft) tall hill and an important site of pilgrimage in Ireland. The roundtrip trip to the top is about 8 miles.
On "Reek Sunday", the last Sunday in July every year, over 15,000 pilgrims climb it. It forms the southern part of a U-shaped valley created by a glacier flowing into Clew Bay in the last Ice Age. Croagh Patrick...