The relics of St Bernadette of Lourdes are arriving in Sligo today, as part of their historic tour around Ireland.
They'll be in the cathedral for the next two days, with a welcoming ceremony taking place at 2 o'clock this afternoon.
Fine Gael TD Frank Feighan, who lives in Sligo, says it's a historic event.
St Bernadette saw the Virgin Mary 18 times at the Grotto in Lourdes in 1858.
Here is a full schedule for the relics' tour around Ireland: https://stbernadette.ie/pilgrimage-details/