Blue Lake of Arolla – The turquoise jewel of the Val d’Hérens

Discovering the Blue Lake: an immersion in a preserved alpine landscape

Between larch forests, alpine clearings, and panoramic views of the glaciers, the hike to the Blue Lake of Arolla is one of the most iconic routes in the Val d’Hérens. Nestled at 2,090 m altitude, this unique lake owes its turquoise hue to mineral springs and, on clear days, reflects the surrounding peaks like a mirror. A perfect escape to experience the magic of the Alps — serenity, unspoiled nature, and grandiose views.

Recommended routes

• From La Gouille → Blue Lake (easy to moderate, 1h30–2h round trip)
A steady climb through bright larch forest leading to alpine meadows and the lake plateau. An accessible hike, ideal for families or a half-day of exploration.

• Loop Arolla → La Gouille → Blue Lake (moderate, 2h30–3h)
A varied route linking the charming village of Arolla to the open landscapes of the upper valley. Cross pastures and small streams before reaching the lake.

Practical details

• Lake altitude: ~2,090 m
• Elevation gain: ~300–400 m depending on route
• Ambiance: alpine forests, flowered meadows, turquoise waters, glacier views
• Facilities: picnic areas, nearby refuge or restaurant depending on season

Level & season

• Level: beginner to intermediate hiker (T1/T2)
• Duration: 1h30 to 3h
• Best season: June → October (depending on snow)
Magical atmosphere in the morning, vivid colors in the late afternoon.

Preparation tips

Wear sturdy shoes, bring a light jacket, water, and snacks. Follow marked trails, respect the local wildlife and the site’s tranquility. In summer, don’t forget sun protection — the alpine sun can be surprisingly strong.

→ Stay idea: morning hike, wellness at Hérémence in the afternoon, and evening at Louise’s Raccard.