A Cavan man who is running 115 miles from his home in Wales to the Breffni County is due to arrive in Cavan this morning.
This is the second time, ultra marathon runner Cormac Lewis has attempted the gruelling trek in aid of homeless charities.
Last year, he completed the challenge and raised thousands of pounds for his chosen charity, Shelter.
On his Just Giving page - Home to Home for the Homeless - Cormac explains he was inspired to do something after witnessing people sleeping in streets and doorways on his way to work in London.
Cormac is not on this journey on his own as he hopes, like last year, other runners will join him on his route from Porthcawl in South Wales to his Cavan home in Elm Bank.
Those who wish to support Cormac's endeavour can donate online.