Experience a challenging ultra trail race set in the stunning hills and mountains surrounding Žilina, Slovakia. This event stands out as one of the most demanding ultra trail competitions in the region, featuring a main distance of 118 kilometers with a staggering elevation gain of 6,300 meters. Participants can also choose from a 62-kilometer and a 40-kilometer route, while teams can compete in a relay, tackling the BBU100+ course in four segments. Prepare for a true test of endurance in this picturesque yet tough terrain.