4.5
(816)
5,250
hikers
64
hikes
Hiking around Bionaz, nestled in Italy's Valpelline valley, offers diverse alpine landscapes. The region is characterized by majestic peaks, some reaching up to 4000 meters, and a verdant basin of grasslands and dense forests. Key features include the Place Moulin Dam and its emerald-green lake, numerous alpine lakes, and the Montagnayes Nature Reserve. This environment provides a range of trails from gentle walks to challenging climbs.
Last updated: May 10, 2026
4.8
(121)
543
hikers
9.65km
03:00
220m
220m
Moderate hike. Good fitness required. Mostly accessible paths. Sure-footedness required.
4.7
(29)
229
hikers
8.61km
04:52
900m
900m
Hard hike. Very good fitness required. Sure-footedness, sturdy shoes and alpine experience required.

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4.5
(40)
191
hikers
7.94km
04:25
790m
790m
Hard hike. Good fitness required. Sure-footedness, sturdy shoes and alpine experience required.
4.7
(30)
248
hikers
16.9km
07:27
890m
890m
Hard hike. Very good fitness required. Sure-footedness, sturdy shoes and alpine experience required.
4.5
(11)
125
hikers
22.4km
08:39
850m
850m
Hard hike. Very good fitness required. Sure-footedness, sturdy shoes and alpine experience required.
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Very peaceful walk around the lake and majestic lake.
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You can also stay for just a few hours: the hour costs 50 cents (as of 2025).
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At the hut, you can enjoy good, traditional dishes at really fair prices. In good weather, you can enjoy the view of the lake from the terrace. If the weather is bad, there's plenty of space inside, too.
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Small, friendly village with a very warm welcome from the villagers
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physical but magnificent descent from the Col de Collon towards Prarayer which runs alongside the Oren torrent
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Two shelters, one for summer and one for winter, the summer one was unfortunately closed when we visited on September 15 and the winter one was available. With a magnificent view
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Descent following the Oren torrent towards Prarayer, magnificent but physical
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easy hike
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Bionaz offers a wide selection of hiking trails, with over 60 routes to explore, catering to various skill levels from easy walks to challenging climbs.
Yes, Bionaz has several family-friendly options. The path along the Place Moulin Dam is largely flat and accessible, perfect for families and strollers. The Lexert Picnic Area also offers a picturesque setting around a small lake for relaxation and short walks.
Bionaz and the Valpelline valley are generally welcoming to dogs. While specific regulations might apply in certain protected areas like the Montagnayes Nature Reserve, many trails are suitable for well-behaved dogs on a leash. Always ensure your dog is under control and respect local wildlife.
Yes, Bionaz offers circular routes. An example is the Place Moulin Dam loop, which allows you to enjoy the stunning emerald-green lake and alpine panoramas.
Bionaz's trails lead through diverse natural beauty. You can encounter the impressive Place Moulin Dam and its emerald lake, numerous alpine lakes like Lago Lungo and Lago Morto, and lush forests. For specific natural highlights, consider visiting the Freideron Stream Waterfalls or exploring the Saint-Barthélemy Valley.
The best time for hiking in Bionaz is typically during the warmer months, from late spring to early autumn (June to September), when trails are clear of snow and the alpine flora is in full bloom. This period offers pleasant temperatures and optimal conditions for exploring the high-altitude landscapes.
Absolutely. Bionaz offers several challenging routes for experienced hikers. Trails like the Ascent to Lago Lungo and Lago Morto involve significant elevation gain and offer rewarding views of alpine lakes. Another strenuous option is the longer hike From Place Moulin Dam to Rifugio Nacamuli at Col Collon.
The area is highly rated by the komoot community, with an average score of 4.5 stars from over 1,100 reviews. Hikers often praise the majestic mountain scenery, the pristine natural reserves, and the impressive water features like the turquoise Lago di Place Moulin. The diverse network of trails catering to all abilities is also frequently highlighted.
Yes, Bionaz offers access to several mountain huts. The Trail to Prarayer Hut from Place Moulin Dam leads to Rifugio Prarayer, and the hike to Rifugio Nacamuli at Col Collon provides scenic rest points for longer excursions.
Yes, parking is generally available at key access points for hiking trails, particularly around popular starting points like the Place Moulin Dam. It's advisable to arrive early during peak season to secure a spot.
While Bionaz is nestled in a more remote alpine valley, public transport options exist to reach the Valpelline area. However, direct access to all trailheads might be limited, and it's recommended to check local bus schedules in advance, especially during the hiking season, for connections from larger towns like Aosta.
While popular routes can see more visitors, Bionaz's extensive network of trails and the vastness of the Valpelline valley mean you can often find quieter paths. Exploring trails that venture further into the Montagnayes Nature Reserve or opting for longer, more challenging routes can lead to a more solitary experience.


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