Lakes around Ollomont offer a diverse alpine environment in the Aosta Valley, characterized by rugged terrain and pristine waters. This region provides access to various lakes, from tranquil high-altitude bodies of water to reservoirs formed by significant engineering. The area is known for its natural features, including wide green pastures and high peaks, making it suitable for different levels of outdoor activity. Many lakes are accessible via trails, providing viewpoints of surrounding mountains and valleys.
Last updated: June 24, 2026
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Highlight • Mountain Hut
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Popular around Ollomont
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And here man has done a colossal work
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The highest road pass in the Aosta Valley and a place that has always fascinated the writer for its thousand-year history, the austere Mauritian hospice and the profound beauty of the landscape.
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The hut has been successfully modernized, combining old and new. Not much of the old hut's charm remains, but everything is now more spacious, well-designed, and bright, including a wonderful lounge with panoramic windows. The hut can also be reached as a day trip by taking the bus to the dam and walking around the lake—with a coffee stop at the Chanrion Hut.
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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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Hotel Italia is highly recommended
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The path through the many galleries connected to the many waterfalls makes the route very attractive!
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https://youtu.be/D352Ql5fMaY?feature=shared. After the reservoir / Mauvoisin, an adventurous ride through tunnels and galleries up and along the reservoir. Easy descent to the end of the lake, then a steep single trail uphill.
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Visitors frequently enjoy the impressive Place Moulin Dam, a significant man-made reservoir offering panoramic views. Another favorite is the area around Lac de Grand Saint Bernard, a high-alpine lake split between Italy and Switzerland, known for its natural beauty and historical significance.
Yes, several options are suitable for families. The Place Moulin Dam offers an easy walk with beautiful views, perfect for all ages. Additionally, the small, unnamed lake in the Valley of By is highly recommended for family trips due to its welcoming and quiet environment with easy paths for younger explorers.
The lakes around Ollomont are set in a rugged, pristine alpine environment. You'll encounter crystalline waters, stunning surrounding peaks like Mont Gelé, Grand Combin, and Mont Vélan, wide green pastures, and dramatic craggy mountains. Many trails offer spectacular viewpoints of these natural landscapes.
Yes, the region combines natural beauty with historical elements. The Place Moulin Dam itself is a significant man-made monument, built between 1955 and 1965. Near the Lac de Grand Saint Bernard, you'll find the historic Great St Bernard Hospice, which has offered hospitality for centuries.
For a moderate challenge, the trail to Lago Cornet offers panoramic views of Mont Gelé and Col Fenêtre Durand. The itinerary to reach Laghi di Thoules is generally not difficult, rewarding visitors with beautiful views of Mont Gelé and the Morion chain. For more options, explore the hiking routes around Ollomont.
Yes, for those looking for a longer adventure or a meal, the Chanrion Hut is a welcoming mountain refuge located above a large lake, offering coffee, food, and accommodation. The Great St Bernard Hospice also provides accommodation and a place to relax.
The best time to visit is generally during the warmer months when trails are clear of snow and the alpine environment is most accessible for hiking and outdoor activities. The region's lakes are often frozen for a significant part of the year, especially at higher altitudes like Lac de Grand Saint Bernard.
Yes, the Fenêtre Lakes (Lacs de Fenêtre), accessible from the Grand-Saint-Bernard Pass, are part of a significant hiking route spanning between Switzerland and Italy, offering stunning alpine scenery and a renowned multi-lake excursion. You can find more challenging routes in the Mountain Hikes around Ollomont guide.
Beyond hiking, the area offers opportunities for mountain biking. You can explore various trails, including those with views of the By Basin or leading to the Fenêtre de Durand. For detailed routes, check out the MTB Trails around Ollomont guide.
Lago Cornet is known for its crystalline waters reflecting surrounding peaks. The Fenêtre Lakes include one famously heart-shaped lake, offering magnificent views, particularly of the Mont Blanc massif. The Trail along Lake Mauvoisin also features sections through tunnels with spectacular views of the lake and mountainside.
Generally, permits are not required for hiking to most lakes in the Ollomont area. However, it's always advisable to check local regulations or specific park requirements if you plan to venture into protected areas or undertake more challenging expeditions.
The Laghi di Thoules are situated in the 'vallone delle Acque Bianche' (White Waters valley) above the hamlet of Glacier in Ollomont. These upper and lower lakes are nestled in a tranquil alpine meadow surrounded by craggy mountains, offering beautiful views of Mont Gelé and the Morion chain. The itinerary to reach them is generally not difficult.


Still not found your perfect lake around Ollomont? Check out the guides of these regions to see even more beautiful places.