Val d'Hérens Arolla Circuit

There are few treks in the Alps that deliver such a pure, unfiltered dose of high-mountain magic as the Val d’Hérens Arolla Circuit. This four-day loop is a masterclass in alpine contrast, swinging between the pastoral charm of flower-strewn meadows and the raw, icy grandeur of glacier crossings, all while keeping the jagged crown of the Pennine Alps in constant view. What sets this route apart is its ability to balance accessibility with genuine adventure—no technical climbing is required, but the glacier passages demand respect, a head for heights, and a steady nerve. It’s a trek that rewards those who come prepared with unforgettable vistas, a sense of solitude, and the thrill of moving through terrain that feels wild and untamed.

The journey begins in the village of Arolla, a quiet hamlet perched at 2,000 meters, where the air is already thin and the peaks loom large. From here, the trail climbs steadily into the heart of the valley, following the course of the Borgne de Ferpècle, a milky glacial stream that carves its way through a landscape of moraines and scree. The first day’s highlight is the approach to the Cabane des Aiguilles Rouges, a rustic hut set against a backdrop of towering granite spires. The path here is steep and rocky, but the effort is rewarded with sweeping views of the Mont Collon massif and the first glimpse of the glaciers that will dominate the days ahead.

The second day is where the route earns its difficult rating. The trail crosses the Glacier de Tsijiore Nouve, a broad, crevassed icefield that requires careful navigation. While the crossing itself is non-technical, the glacier’s surface can be slick and uneven, and the route is often marked by cairns or painted stones—though these can be obscured by fresh snow or shifting ice. Poles are essential here, as is a good pair of waterproof boots with sturdy soles. Beyond the glacier, the path ascends to the Col de Tsijiore Nouve, a high pass at 3,100 meters that offers a breathtaking panorama of the surrounding peaks, including the iconic Dent Blanche. The descent from the pass is steep and loose underfoot, leading to the Cabane de Bertol, a hut clinging to the mountainside like an eagle’s nest. The approach involves a series of fixed ladders and cables, adding a touch of via ferrata-like excitement to the day.

Day three is a study in alpine variety. The trail winds through the Val de Bertol, a remote and seldom-visited valley where ibex and chamois are often spotted grazing among the boulders. The path here is less defined, with sections of loose scree and occasional snowfields, even in summer. The highlight is the crossing of the Col de la Serpentine, a narrow saddle that provides a dramatic vantage point over the glaciers spilling down from the Dent d’Hérens. The descent into the Val d’Arolla is long and gradual, following a series of switchbacks that offer ever-changing views of the valley below. The final night is typically spent in the Cabane des Vignettes, a modern hut with a terrace that seems to hang in the sky, offering a front-row seat to the sunset over the Alps.

The last day brings the trek full circle, with a descent back to Arolla through forests of larch and pine. The trail here is gentler, a chance to reflect on the landscapes traversed and the challenges overcome. The final stretch follows the river, its waters rushing over smooth stones, a soothing counterpoint to the drama of the high mountains.

This is a trek for those who are comfortable with exposure, uneven terrain, and the physical demands of sustained elevation gain. A good level of fitness is essential, as is experience with mountain navigation—while the route is well-trodden, weather can change rapidly, and the high passes are no place to be caught unprepared. July and August are the best months to attempt the circuit, when the huts are open, the trails are free of snow, and the days are long. Even then, early starts are advisable to cross the glaciers in the cool of the morning, when the ice is