Patagonia’s O Circuit is an outstanding hike, an eight-day trek that loops around the entire Paine Massif through forests, glaciers, windswept valleys, and some of the most dramatic mountains on earth.
I travelled with my parents and a family friend. Our journey began near Laguna Azul, where the trail opened into a vast valley ringed by jagged peaks. Wild horses wandered the meadows and a braided river wound across the plain. Within the first hours we were already learning the rhythm of the hike: long stretches of walking, new friends forming on the trail, and unexpected detours (like the moment we turned around and hiked two extra miles back across the valley to recover my step-dad’s lost hearing aid. Miraculously, we found it.)
As the days unfolded, the scenery kept changing. One morning we climbed above the forests near Lago Paine, where fierce Patagonian winds pushed us along the shoreline. Another day brought quiet forest walking and birdwatching before the trail ended at the striking blue waters of Glaciar Los Perros. Evenings were spent in remote camps sharing meals with hikers from all over the world—Belgians, Australians, Germans, Canadians—trading travel stories over lentils, pasta, and the occasional celebratory beer.
The most dramatic day came crossing the John Gardner Pass. We left before sunrise, climbing steadily through snow before reaching the summit. Suddenly the clouds opened and Glacier Grey spread out below us: an immense river of ice stretching to the horizon. The descent was slow and careful, navigating slippery slopes and rough terrain, but the views of the glacier and lake made every step worth it.
The trail gradually curved back toward the more famous sections of the park. We hiked along the brilliant blue waters of Lake Nordenskjöld, spotted guanacos grazing in the distance, and climbed into the dramatic French Valley, where granite peaks tower on every side.
The final morning brought the most iconic view of all: the climb to Las Torres, the three granite towers that give the park its name. The last stretch was a scramble over loose rock, but when the towers finally appeared above the turquoise lake, the entire journey felt complete.
Eight days on the O Circuit means glaciers, wind, new friendships, and landscapes that feel almost mythic in scale. It’s one of the great treks of the world and completing the trail with my parents will be an unforgettable memory.