The Lac Blanc Loop in Rue du Slalom, Les Belleville offers a breathtaking alpine hike through the heart of the Auvergne-Rhône-Alpes region. Known for its pristine glacial lakes, rugged mountain views, and wildflower-dotted trails, this moderate loop is a must-hike for anyone exploring the 3 Vallées region.
Route Type: Loop
Difficulty: Moderate
Estimated Time: 3–4 hours
Dogs Allowed: Yes, on leash
Swimming: Not recommended due to cold alpine waters and fragile ecosystem
The trail begins in Les Menuires and climbs through alpine meadows and rocky terrain, offering sweeping views of Mont Blanc and the surrounding valleys. The highlight of the hike is Lac Blanc, a crystal-clear lake set against a dramatic mountain backdrop. Hikers can expect well-marked paths, exposed ridgelines, and a few rocky sections requiring sturdy footwear.
The trail is best hiked between mid-June and early October, depending on snowmelt. Mornings offer calmer weather and better light for photography, while summer afternoons can bring fast-moving storms.
Free public parking is available at Rue du Slalom in Les Menuires. From there, the trailhead is clearly marked and easy to find. Public transit from Moûtiers is also an option for those without a vehicle.
No permits are required to hike the Lac Blanc Loop. However, hikers should practice Leave No Trace principles and avoid disturbing wildlife, especially marmots and ibex commonly spotted in the area.
Sturdy hiking shoes
Water and snacks (no facilities on-trail)
Sun protection (limited shade)
Layers – the weather can change rapidly
Trekking poles for steep descents
After your hike, explore the charming mountain town of Saint-Martin-de-Belleville or enjoy a post-hike meal at one of the many chalets in Les Menuires. The trail is also near other alpine routes like the Col de la Fenêtre and Lac du Lou.