The Cordillera Huayhuash is a compact knot of glaciated peaks rising from the Peruvian Andes, and the circuit around it is routinely ranked among the finest treks on Earth. Over eight to twelve days, the route threads beneath a wall of great mountains – Yerupaja, Siula Grande, Jirishanca – crossing high passes and camping beside turquoise lakes, all far from the crowds of the better-known Cordillera Blanca. This is expedition-style trekking without the expedition logistics: wild, high and utterly spectacular.
Why go
The mountain scenery here is on another level. The Huayhuash packs an absurd concentration of 6,000-metre peaks into a small range, and the circuit keeps them in view for days at a time. Lakes like Carhuacocha sit directly beneath sheer glaciated faces, reflecting them at dawn. Siula Grande, made famous by the survival story Touching the Void, towers over the route’s most dramatic camps. And because the circuit is long and logistically demanding, you will share it with far fewer trekkers than almost any comparable route in the Andes.
Best time to visit
The dry Andean winter, generally May through September, is the trekking season: the most stable weather, the clearest views and the safest pass conditions. Even then, expect freezing nights and the possibility of snow on the high passes. The wet season from around November to March brings frequent storms and is generally avoided for the full circuit. Whatever the month, mountain weather is changeable – build spare days into your itinerary.
Getting around
Huaraz, the trekking capital of the Peruvian Andes, is the usual base for organising the circuit. Treks are generally arranged with local operators who provide guides, cooks and donkeys or mules for the loads – this is not a route to attempt unsupported unless you are very experienced. The circuit typically starts and ends at road-accessible villages on the range’s flanks, reached by rough mountain roads from Huaraz.
Good to know
- This is a long, high trek: passes regularly exceed 4,700 metres. Spend several days acclimatising around Huaraz before starting.
- There are no shops, lodges or rescue services on the circuit. You are fully self-sufficient between the start and finish – plan food, fuel and first aid accordingly.
- Nights are very cold and storms can arrive fast. A four-season-worthy tent and proper cold-weather clothing are essential.
- Treat all drinking water and pack out all waste. The range’s beauty depends on trekkers leaving no trace.
The Huayhuash is not a trek to rush or underestimate, but for fit, well-prepared walkers it offers something increasingly rare: a great mountain journey through true wilderness. Take your time, respect the altitude, and it will give you the trek of a lifetime.