Official website of the most extreme cross-country athletics event in Costa Rica, where the brave athletes who participate climb from San Gerardo de Rivas to Base Crestones in just 3 hours 15 minutes… round trip! On the site you will find photos of various previous events, news of interest, registration dates, a comment and query form, as well as sponsor information. If you wish to participate in the International Cross Country Race to Cerro Chirripó You can request more information through it site.