Irelands leading cancer research charity adds Climb Croagh Patrick to its list of events for 2025. Breakthrough Cancer Research believes in turning ‘Always Wanted To’ lists into powerful fundraising opportunities. This year, we’re inviting local businesses like yours to take on one of our newest challenges - hiking or biking to help fund cutting-edge cancer research. Always Wanted To… Climb Croagh Patrick? We’re thrilled to introduce our first-ever Croagh Patrick climb on Saturday, May 17th, 2025.