Within an hour we were in a large bus heading towards “La Cumbre”, the high mountain pass where the buses cross from the high-plateau La Paz on their way to the tropical “Los Yungas” foothills. The bus was cold and packed. There were even people sitting on the floor in the aisle. Sooner than I was ready for, the bus pulled over and I hauled myself and pack over and around bodies to the exit and into the fresh iciness of the mountain day.