On March 17 every year, St Patrick's Day celebrations take place across Northern Ireland. The celebrations are organised to commemorate the death anniversary of Saint Patrick, the foremost patron saint of Ireland. Also on this day, the tourism season of the country begins. The motto behind organising such celebrations are to bring a smile to the faces of people around the world and to convey the message that Ireland offers the warmest of welcomes and great fun, as well as wonderful scenery and heritage. Thousands of people have attended St Patrick's Day parades this week across the northern part of the nation.