The climb up to Le Louvet, right from the start, is the first challenge of the route. Fairly steady and shaded in the woods, it leads to a flat section and a lovely viewpoint.

Next comes the Louvet Hut, along a flat stretch that's as enjoyable as the scenery around it.
You can refill your water at the nearby fountain. A scenic singletrack descent follows, occasionally technical.

The trail then joins a forest road. Smooth, steady, and shorter than its two “sisters,” the second climb is ultimately the easiest of the three.

On the second descent, a small, technical singletrack trail, you may come across other runners making their way uphill.

The final climb starts off gently at the edge of the forest, then becomes tougher in the final few hundred meters. Once back in the woods, pay close attention to marked intersections — the route crosses several Bike Park trails. The landscape then opens up, revealing the resort below and signs of life returning just beneath you. The loop finishes gently with a fast and flowing forest road descent, offering glimpses of the Désert hamlet and the Vercors mountains in the distance.
Marking : Blue waymarking No. 2 (Alpe du Grand Serre – Sector No. 1) The routes follow the hiking trail network, and Trail markers are placed on directional signposts. In addition to the specific Trail signage, use the directional indications and waymarks on the ground to navigate.
Equipments : Picnic area, Public WC,

Delicate passages : Technical descent: Caution is advised when crossing the 50-meter rocky section of the trail, use the safety cables if needed for support. Important! You are in a protected natural area: Please stay on marked trails, take all your waste with you, and keep dogs on a leash at all times.

Admission fee : Free access. Free pricing rundown at tourist office.

Opening : All year round daily.

Area : Matheysine