This document provides information about Irish places of pilgrimage. It discusses that pilgrimages are special journeys made to places considered holy or significant in one's faith. Some key Irish pilgrimage sites mentioned include Croagh Patrick, Knock, Glendalough, and Lough Derg, where pilgrims would visit to pray, fast, or renew their faith. The document also describes characteristics of Celtic Christian pilgrimage sites, including high crosses, holy wells, holy trees, and round towers that pilgrims would encounter at these locations dedicated to important Irish saints.