St Giles' Cathedral, the High Kirk of Edinburgh, is open to visitors throughout the year: Mon - Fri 9am - 7pm (May - Sept), 9am - 5pm (Oct - Apr), Sat 9am - 5pm, Sun 1pm - 5pm. Volunteer Guides are available to answer questions and give guided tours on request. Highlights include our stained glass windows, Rieger organ and the Thistle Chapel, home of the Knights of the Order of the Thistle. Cathedral Shop and Lower Aisle Restaurant.