Reek Sunday () 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. It is held in honour of Saint Patrick who, in the year 441, spent 40 days fasting on the mountain. Masses are held at the summit, where there is a small chapel. Some climb the mountain barefoot, as an act of penance, and some carry out 'rounding rituals', which were formerly a key part of the pilgrimage. This involves praying while walking sunwise around features on the mountain. They walk seven times around the cairn of Leacht Benáin (Benan's grave), fifteen times around the circular perimeter of the summit, seven times around Leaba Phádraig (Patrick's bed), and then seven times around three ancient cairns known as Reilig Mhuire (Mary's cemetery).