Day 1 — Bourg-Saint-Pierre: lakeside walk at Lac des Toules and acclimatization
- 🥾 It’s best to make the first day easy and introductory: a walk by Lac des Toules and along the marked trails above Bourg-Saint-Pierre. The character of the route is an alpine lake, open pastures, conifer-covered slopes, and views of the upper Grand-Saint-Bernard valley. The active part of the day usually takes 2.5–4 hours, depending on the chosen loop; difficulty is easy; expected distance is 6–9 km, with elevation gain of ≈150–300 m. This is a good start for an average traveler: the trails are well known, with no technical sections, no glacier travel, and no need for special equipment. Along the way, the calm water, alpine meadows, and the harsh yet highly photogenic landscape by the dam are especially beautiful. In July and August, most of the lower routes are usually already accessible, but mornings can be cool and thunderclouds are common after midday, so it’s better to set out early. If you want to add another short walk, you can also visit the village of Bourg-Saint-Pierre and stroll through its old streets as a calm recovery part of the day.