thebogotapost.com
Hot Springs, Volcanos and Altitude Sickness: Colombia's Cerros Los Nevados
I was nearing 4000m on the ascent to Colombia’s Nevado Del Ruiz when the situation became serious. My trekking partner, delirious from the cold, thinning air had begun to struggle with his balance as we slowly pushed up the volcanic mountainside and I was close to follow.