Former broadcaster Charlie Bird and around 3,000 people are taking part in charity walks on Croagh Patrick today.
200 separate walks are also taking place across Ireland, the US, Australia and Spain today.
Mr Bird has motor neurone disease, and the events have raised over 1 million euro for charity.
Midwest Radio are broadcasting throughout the day with extensive coverage of the Climb with Charlie.
Fr Charlie McDonnell, the administrator of Westport Parish, says there is an outpouring of support for the ex-broadcaster.