Alta Via n. 1 della Valle d'Aosta - Tappa 17

The Alta Via n. 1 della Valle d'Aosta - Tappa 17 is a 12-km point-to-point trail in Italy's Aosta Valley, descending from Rifugio Walter Bonatti at 2,025 m to Courmayeur at 1,223 m. With roughly 350 m of ascent against an 800 m net descent and a grade E (moderate) rating, this balcony stage delivers head-on views of the Grandes Jorasses and the Mont Blanc massif.

About the Alta Via n. 1 della Valle d'Aosta - Tappa 17

The Alta Via n. 1 della Valle d'Aosta — nicknamed the Alta via dei Giganti, the "High Route of the Giants" — is a long-distance trail that traverses the northern flank of the Aosta Valley beneath four of the highest mountains in the Alps: Monte Rosa, the Matterhorn (Cervino), the Grand Combin and Mont Blanc. The full route runs from Donnas (329 m) in the southeast to Courmayeur (1,223 m) in the northwest, crossing seven lateral valleys and topping out at the Col de Malatra (2,925 m), its highest pass.

Tappa 17 is the closing leg of that journey. Maintained by the Regione Autonoma Valle d'Aosta and signed within the Regional Walking Network (RWN), it carries hikers from Rifugio Walter Bonatti (2,025 m) down the eastern slope of the Val Ferret and over to Courmayeur (1,223 m), the resort town at the foot of Mont Blanc. The 12-km stage is officially graded E — escursionistico, meaning it needs no technical climbing skill, only sure footing and reasonable fitness — and most parties walk it in 3 to 4 hours.

What makes this final tappa special is the scenery rather than the difficulty. For its first half the path is a true alpine balcony, contouring high above the valley floor with the granite spires of the Grandes Jorasses, the Dent du Géant and the Aiguille de Rochefort filling the skyline across the Val Ferret. This same balcony is shared with the celebrated Tour du Mont Blanc and forms part of the Tor des Géants ultra route, so you walk a corridor that some of the most famous footpaths in Europe also use. Wikipedia describes the Bonatti-to-Courmayeur section as the natural conclusion of the high route, and on the ground it feels exactly like a victory lap.

Route Overview & Stages

Tappa 17 is a single stage, but it breaks naturally into three segments. The table below splits the 12 km so you can pace the day; figures are approximate and rounded.

The day is overwhelmingly downhill in net terms, but the rolling balcony adds enough short climbs to keep tired legs honest. The final drop from Rifugio Bertone into Courmayeur is the steepest piece, losing nearly 770 m through larch and pine forest in about 3.5 km — trekking poles earn their keep here.

Highlights & Points of Interest

• Rifugio Walter Bonatti (2,025 m) — the start point, named for the legendary Italian alpinist. Its sun terrace faces the Mont Blanc range and is a classic spot for an early-morning coffee before setting off.
• Grandes Jorasses (4,208 m) — the granite wall dominating the western horizon for the first hour. The north face is one of the great alpine climbing test-pieces; you see its south side from the balcony.
• Dent du Géant (4,013 m) — the unmistakable tooth-shaped tower visible up the Val Ferret, often catching the first light at sunrise.
• Val Ferret balcony path — the high contouring trail itself, a 4-km traverse through wildflower meadows where marmots whistle and chamois are common at dawn.
• Rifugio Giorgio Bertone (1,991 m) — a welcoming hut about two-thirds of the way along, with a panoramic deck looking straight at the Mont Blanc summit. A natural lunch break.
• Mont de la Saxe ridge — the grassy crest above Bertone, an optional short detour with arguably the finest Mont Blanc panorama of the whole Alta Via 1.
• Val Sapin — the quiet wooded valley the descent threads on the way down to Courmayeur, dotted with old hamlets and hay barns.
• Courmayeur (1,223 m) — the finish: a historic mountaineering town with the Alpine Museum (Museo Alpino Duca degli Abruzzi), guides' offices, bakeries and the closest thing to a hero's welcome at the end of a long high route.

Best Time to Hike the Alta Via n. 1 della Valle d'Aosta - Tappa 17

The reliable season runs from late June to late September, when the high balcony is clear of snow and the refuges along the route are staffed and open. Outside that window, lingering snowfields on the traverse and shuttered huts make the day far less appealing.

July brings the fullest wildflower display across the Val Ferret meadows, but it is also the busiest month — Tappa 17 shares its path with the Tour du Mont Blanc, so expect company on the balcony and book huts well ahead. August is warm and stable but peaks with Italian and European holiday traffic, and afternoon thunderstorms build quickly over the Mont Blanc massif; aim to be off the high section by early afternoon.

The single best month is September. As of 2026, early-September conditions on this stage typically mean crisp, stable air, dramatically clearer long-distance views of Mont Blanc, far thinner crowds once the August holidays end, and refuges still operating into the third week. Larches have not yet turned, but the light is golden and the heat of high summer has broken. First overnight frosts can arrive by the month's end, and most huts close around the final weekend of September, so plan the walk before then.

Practical Information

Accommodation

Because Tappa 17 ends in a full-service town, you have two natural overnight strategies: sleep at Rifugio Walter Bonatti the night before and walk down fresh, or finish in Courmayeur and stay there. A dormitory bed in an Aosta Valley refuge such as Bonatti or Bertone runs roughly €30–€40 per person, with half-board (dinner, bed and breakfast) typically €70–€90. Reservations are essential in July and August. In Courmayeur, expect €90–€180 for a mid-range hotel double in season and around €30–€45 for a hostel or B&B dorm bed.

Wild camping is restricted across the Aosta Valley; bivouacking is tolerated only above the treeline, for a single night, pitched after dusk and struck at dawn. The simplest and most reliable option on this stage is the hut-and-town combination rather than a tent.

Getting There & Back

Courmayeur, the finish, is the obvious base. The nearest mainline railway station is Pré-Saint-Didier (about 15 minutes by bus) or the regional hub of Aosta, roughly 1 hour away by frequent bus. From Aosta there are direct coaches to Turin (about 2 hours) and onward rail to Milan. The closest international airport is Turin (Caselle, TRN), around 2 hours from Courmayeur by road; Geneva (GVA) is roughly 1.5–2 hours via the Mont Blanc Tunnel and a popular gateway from the French side.

To reach the start at Rifugio Bonatti you walk in — typically from Lavachey or Arnouvaz in the upper Val Ferret, reached by the seasonal Courmayeur valley shuttle bus. Check current timetables with the regional bus operator before you travel; service is dense in summer and sparse in shoulder season. Arriva Valle d'Aosta publishes the Aosta–Courmayeur and Val Ferret routes.

Permits & Fees

No permit is required to walk Tappa 17 — the Alta Via n. 1 is a free public footpath maintained by the Regione Autonoma Valle d'Aosta, and there is no entry fee or quota. Costs are limited to accommodation, meals and transport. Refuges charge for beds and meals as above, and the seasonal Val Ferret shuttle carries a small fare (a few euros). For the official stage description and signage details, consult the regional tourism authority's Alte Vie database.

Gear & Packing List

Tappa 17 is short and ends in town, so you can travel light — but it is still high alpine terrain where weather flips fast. Carry a waterproof shell, an insulating mid-layer, sun protection and at least 1.5 litres of water, plus trekking poles for the steep forest descent into Courmayeur. If you are walking the wider Alta Via 1 as a multi-day route, weight discipline matters far more, and a frameless ultralight pack pays off over the long days.

For a day or hut-to-hut load on this stage, a 35–55 litre pack is ideal. Good choices include the lightweight 2400 Windrider for a minimalist kit, the slightly larger 3400 Windrider if you carry a sleeping bag for refuges, or the comfortable, more traditional Abisko Hike 35 for a single-stage daypack. See our tested roundup of the best ultralight backpacks of 2026 for the full comparison.

Refuge dinners are generous, but the balcony has no resupply, so pack trail snacks for the day. If you are stringing several Alta Via stages together, dial in your daily intake — our guide to how many calories you need hiking a full day helps you carry the right amount of food without overpacking.

Similar Trails You Might Like

If the alpine balcony walking of Tappa 17 appeals, Italy's other great alte vie deliver the same rifugio-to-rifugio rhythm at a longer scale, mostly in the Dolomites rather than the western Alps. These linked routes are natural next objectives once you have a taste for high Italian trekking:

• Alta Via n. 2 delle Dolomiti - Dolomiten-Höhenweg Nr. 2 (Italy), 185 km
• Alta via n. 6 delle Dolomiti (Italy), 180 km
• Alta via n. 6 delle Dolomiti - XI tappa (Italy), 180 km
• Alta via n. 6 delle Dolomiti - X tappa (Italy), 180 km
• Alta via n. 9 delle Dolomiti - Dolomiten-Höhenweg Nr. 9 (Italy), 140 km

For a wilder, more remote feel outside the Alps, our guide on how to hike the Theth to Valbona trail in Albania covers a similarly scenic single-day mountain crossing on a tighter budget.

Frequently Asked Questions

When is the best time to hike Tappa 17?
Walk it between late June and late September, when the balcony is snow-free and the refuges are open. Early September is the single best window: stable air, the clearest Mont Blanc views, fewer crowds than the July–August peak, and huts still operating. Most refuges close around the final weekend of September, so plan before then.

How difficult is Tappa 17?
It is graded E (escursionistico), the standard moderate hiking rating, requiring sure footing and basic fitness but no technical climbing or via ferrata skills. The terrain is a clear, well-marked balcony path followed by a steep forest descent. Trekking poles help on the final 770 m drop into Courmayeur, but the stage is well within reach of any regular hill walker.

How far is this stage and how long does it take?
Tappa 17 covers 12 km from Rifugio Walter Bonatti at 2,025 m to Courmayeur at 1,223 m, with about 350 m of ascent and roughly 800 m of net descent. Most hikers complete it in 3 to 4 hours of walking. Allow extra time for the optional Mont de la Saxe ridge detour and for lunch at Rifugio Bertone along the way.

Where can I stay along the route?
Sleep at Rifugio Walter Bonatti the night before (dormitory beds about €30–€40, half-board €70–€90) and finish in Courmayeur, where hotels run €90–€180 and hostel beds €30–€45 in season. Rifugio Bertone partway along is a popular meal stop. Book huts well ahead for July and August, when the shared Tour du Mont Blanc route is busy.

Do I need a permit or pay a fee?
No permit is needed. The Alta Via n. 1 is a free public footpath maintained by the Regione Autonoma Valle d'Aosta, with no entry fee or quota system. Your only costs are accommodation, meals and transport, including a small fare for the seasonal Val Ferret shuttle bus that helps you reach the trailhead near Rifugio Bonatti.