The March Against Cancer is a 3 km solidarity mountain race and walk held in Zumarraga and Urretxu, Gipuzkoa. This charity event, organized by the Spanish Association Against Cancer, aims to raise funds for research and support for people affected by this disease. The short course runs through the streets of both towns in Gipuzkoa, offering an accessible route for all participants. The event is characterized by its solidarity focus and its goal of raising cancer awareness, promoting citizen participation in the fight against this disease. Registration for the march directly contributes to the AECC's initiatives in the Basque Country.