Archbishop Michael Neary will lead the annual Croagh Patrick pilgrimage tomorrow (Sunday).
Later this evening ( Sat), Archbishop Neary will celebrate Mass in St Mary's Church, Westport at 6.30pm to mark the official start of this year's pilgrimage.
On Reek Sunday, Mass will be celebrated on Croagh Patrick every hour from 8am to 2pm.
The Bishop of Killaloe Fintan Monahan will celebrate the 9am Mass, and Archbishop Neary will celebrate Mass at 11am.
Confessions will also be available on the summit from 7.30am to 2pm.
Those making the climb this weekend are advised to come prepared - with wet gear, sun screen, appropriate footwear, water and snacks.