Two brothers in their 50s are to undertake a gruelling 1,200km cycle in France to raise money for charity in memory of their mother who died from cancer.

Fundraising for good causes has come a long way since the days of the charity walk. It is now a more adventurous undertaking, as round-Ireland swimmer Alan Corcoran and global cyclists Paddy Flynn and Daithí Harrison are proving.

Two Irishmen will cycle across 28 countries and three continents to raise money for CMRF Crumlin and the Sydney Children's Hospitals Foundation.