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

The Alta Via n. 1 della Valle d'Aosta - Tappa 1 is a 13-km point-to-point trail in the Valle d'Aosta region of northwest Italy, gaining roughly 1,100 m of elevation over one full day. Rated E (moderate) on the SAT/CAI scale, it climbs from the medieval town of Donnas at 330 m to the alpine hamlet of Sassa at 1,430 m, launching the famous "Giants' High Route" across the Pennine Alps.

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

The Alta Via n. 1 della Valle d'Aosta, nicknamed the Alta via dei Giganti (Giants' High Route), is a 14-stage long-distance trail that runs entirely within the Italian autonomous region of Valle d'Aosta, from Donnas in the east to Courmayeur in the west. It is managed by the Regione Autonoma Valle d'Aosta and threads the southern flanks of the great 4,000-metre peaks of the Pennine Alps, passing within sight of Monte Rosa, the Matterhorn (Cervino) and, at its western end, Monte Bianco. The full route forms the second and final section of the legendary Tor des Géants ultra-endurance circuit.

Tappa 1 — Stage 1 — is the trail's opening leg. It covers about 13 km from Donnas (330 m) to Sassa (1,430 m), a small settlement in the municipality of Lillianes above the Lys valley. With roughly 1,100 m of net ascent and a typical walking time of 6 to 7 hours, this stage is a sustained climb out of the warm valley floor into chestnut woods, terraced vineyards and the cooler mid-mountain belt. The grade is steady rather than technical, making it an honest but accessible introduction to the high route. Because the stage starts at one of the lowest points in the entire Aosta valley, the climb is among the most relentless of the whole Alta Via 1, and pacing matters from the very first kilometre.

Donnas itself is worth arriving early to see. The town preserves a dramatic carved section of the Roman consular road, the Via delle Gallie, complete with a rock-cut arch and a milestone marking the XXXVI mile from Aosta. Setting off on foot from this 2,000-year-old causeway gives Stage 1 a sense of stepping back into the deep history of the valley before the modern trail markers take over.

Route Overview & Stages

While this guide focuses on Stage 1, the table below places it in the context of the early stages of the full Alta Via n. 1, so you can see how the route develops if you continue west. Distances and gains are approximate and based on the official Regione Autonoma Valle d'Aosta stage descriptions.

The full route runs to 14 stages and finishes at Courmayeur (1,223 m) beneath Monte Bianco, after crossing seven lateral valleys on the northern, sun-facing side of the main Aosta trough. Most thru-hikers allow 12 to 15 days for the complete traverse, but Stage 1 stands perfectly well on its own as a strenuous day hike or a weekend opener.

Highlights & Points of Interest

• Via delle Gallie, Donnas — The Roman road carved directly into the rock face at the start of town, including a natural arch and the milestone marking 36 Roman miles from Aosta. A striking place to begin walking.
• Donnas vineyards — Terraced slopes producing the DOC Donnas red from Nebbiolo (locally Picotendro), worked on dramatic dry-stone walls right above the trail.
• Chestnut forests — The lower climb passes through extensive sweet-chestnut woods, historically a staple food source for the valley and a blaze of colour in autumn.
• Pramotton tower — The ruined medieval watchtower on a rocky spur above Donnas, visible during the early ascent and guarding the entrance to the valley.
• Lys valley viewpoints — As the trail gains height, openings in the woods reveal the broad Lys (Lillianes) side valley climbing toward the Walser communities of Gressoney.
• Lillianes hamlets — Scattered stone-and-slate alpine hamlets with traditional architecture, including chapels and communal ovens typical of the region.
• Sassa (La Sassaz, 1,430 m) — The stage's end point, a quiet mountain settlement above Lillianes that marks the transition from cultivated valley to open mountain.
• Mont Mars Regional Nature Reserve — Protected high country just beyond Sassa, with glacial lakes and rich alpine flora that hikers continuing to Stage 2 will encounter.

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

The practical hiking window for Stage 1 runs from late May through October. Because the route tops out at only 1,430 m, it clears of snow far earlier than the high-altitude stages further along the trail, so it is often walkable when the cols beyond Rifugio Coda are still blocked. June is the single best month: the chestnut and beech woods are lush and green, mountain wildflowers peak across the upper meadows, water sources run full, and the valley has not yet reached its summer heat. As of 2026, regional alpine bulletins from the Valle d'Aosta forecasting service typically show the lower trail snow-free and in good condition by the first week of June.

July and August are reliable but bring two drawbacks: the climb out of Donnas, which sits at just 330 m and faces south, can be uncomfortably hot before mid-morning, and afternoon thunderstorms are common in the Pennine Alps — start early and aim to reach Sassa by early afternoon. September offers cooler, stable air and excellent visibility, while early October rewards walkers with golden chestnut foliage but shorter daylight. Avoid the shoulder edges of the season if rain is forecast, as the rocky, root-laced lower path becomes slippery.

Practical Information

Accommodation

Stage 1 is short enough to complete in a day, but several options let you turn it into a relaxed overnight. In Donnas and neighbouring Pont-Saint-Martin you will find small hotels and B&Bs priced around €60–90 for a double room. At the stage end, Sassa and the wider Lillianes commune offer agriturismi and rooms in private homes, generally €40–70 per person including a hearty breakfast; book ahead, as beds are limited. Hikers continuing on Stage 2 usually push to Rifugio Coda (2,280 m), a staffed CAI-style mountain hut where a bunk in a dormitory plus half-board (dinner and breakfast) typically runs €50–60 per night. Wild camping is restricted across Valle d'Aosta; discreet bivouacking above the tree line is tolerated only between dusk and dawn, and never within protected reserves.

Getting There & Back

Donnas sits on the main Aosta valley corridor and is easy to reach by public transport. The nearest railway station is Pont-Saint-Martin, about 3 km away on the Chivasso–Aosta line, with regional trains roughly hourly; Donnas also has its own request stop. From Turin the train takes around 1 hour 30 minutes; from Milan, allow about 2 hours 30 minutes with a change at Chivasso or Ivrea. The closest major airport is Turin Caselle (TRN), around 1 hour 15 minutes away by car or a train-and-shuttle combination; Milan Malpensa (MXP) is roughly 2 hours. From Sassa, local buses run down to Lillianes and Pont-Saint-Martin, though services are sparse — check timetables in advance or arrange a taxi back to the rail line.

Permits & Fees

No permit or entry fee is required to hike Stage 1 of the Alta Via n. 1, and the trail is free and open to the public year-round. There are no booths, tickets or quotas. Your only costs are accommodation, food and transport. Mountain refuges charge for bunks and meals as noted above, and the Mont Mars reserve beyond Sassa asks visitors to respect wildlife and stay on marked paths. Carry cash, as many huts and small guesthouses in the side valleys do not accept cards. Standard EU health cover (EHIC/GHIC) applies in Italy, but dedicated mountain-rescue insurance is strongly recommended for the wider route.

Gear & Packing List

For a single-day attempt on Stage 1 you can travel light, but the 1,100 m climb and exposed upper section mean you should still carry full mountain essentials: sturdy boots, layers for a 1,000 m temperature swing, two litres of water, sun protection and a rain shell. If you plan to link several stages and stay in refuges, a 35–50 litre pack is the sweet spot. A frameless ultralight option such as the Hyperlite Mountain Gear 2400 Windrider suits fast-and-light hut-to-hut travel, while the larger 3400 Windrider carries the extra food and layers needed for a multi-day traverse. For hikers who prefer a structured, ventilated harness on long sweaty climbs like the one out of Donnas, the Osprey Atmos AG 50 is a comfortable all-rounder. Match your pack weight to your fitness — and if you are dialling in food rations for back-to-back mountain days, our guide on how many calories you need hiking a full day helps you avoid both bonking and carrying dead weight. For broader pack comparisons, see our roundup of the best ultralight backpacks of 2026.

Similar Trails You Might Like

If the high, hut-to-hut character of the Alta Via n. 1 appeals to you, Italy's classic Dolomite high routes — the alte vie — offer the same multi-stage rhythm amid even more dramatic limestone scenery. These longer traverses share the staged structure, refuge network and waymarking conventions you will meet on the Valle d'Aosta route, scaled up to one to two weeks of walking.

• 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 contrast in atmosphere, the cross-border Theth to Valbona trail in Albania delivers a similarly steep alpine day in the Accursed Mountains, with a markedly different cultural backdrop.

Frequently Asked Questions

When is the best time to hike Stage 1 of the Alta Via n. 1?

Late May through October is the practical window, and June is the single best month. The stage tops out at only 1,430 m, so it is snow-free far earlier than the high cols further along the route. June brings green woods, peak wildflowers and moderate temperatures, while July and August can be hot and prone to afternoon thunderstorms on the south-facing climb.

How difficult is the Donnas to Sassa stage?

It is rated E (escursionistico / moderate) on the Italian CAI scale, meaning no technical climbing or via ferrata, but it demands solid fitness. The challenge is the sustained 1,100 m climb from 330 m to 1,430 m on rocky, root-laced paths. With good footwear and steady pacing most fit hikers manage it comfortably in 6 to 7 hours.

How long is Stage 1 and how much do you walk per day?

Stage 1 covers about 13 km with roughly 1,100 m of ascent, taking 6 to 7 hours of walking. That is a full but achievable day. Subsequent stages of the Alta Via n. 1 average 12 to 16 km each with similar daily climbs of 900 to 1,100 m, so expect comparable effort if you continue west.

Where can you stay along the route?

Donnas and Pont-Saint-Martin have hotels and B&Bs from around €60–90 per double. Sassa and Lillianes offer agriturismi and rooms at €40–70 per person with breakfast, though beds are limited and should be booked ahead. Hikers continuing to Stage 2 typically stay at Rifugio Coda (2,280 m), where dormitory half-board costs about €50–60.

Do you need a permit or pay any fees?

No. Hiking Stage 1 of the Alta Via n. 1 requires no permit, ticket or entry fee — the trail is free and open to the public all year. Your only costs are accommodation, meals and transport. Bring cash, since many refuges and small guesthouses in the side valleys do not accept card payments, and consider mountain-rescue insurance.

For official stage details and updates, consult the Regione Autonoma Valle d'Aosta trail database, and check conditions before departure via the regional Valle d'Aosta government portal.