








Gouffres, tannes, glacières, pont de pierre, grotte des fées... this mountain is a veritable gruyère of limestone shaped by water! Follow the discovery trail through the caves of the Margériaz and discover all their mysteries.
From the car park, the trail leads you to Place à Baban, then follows a path that climbs through the forest. Beneath your feet, the Margériaz plateau is made of limestone. Water has dissolved the rock, creating numerous galleries.
Along the way, venture into the caves and feel the dampness of the stone. Don't go too deep, though, as this is where the fairies live.
Reach your hand over the chasms and feel the cold of the snowfields preserved in their depths.
If you want to extend your hike, take the path that climbs up through the rocks to reach the ridge. Once at the top, you'll be rewarded with superb views of the Belledonne mountain range, the Granier...
The path winds its way down through the mountain pastures, where you'll see lapiaz formations carved out by water runoff. You may even come across a herd grazing peacefully here.
On the way back through the forest, Margériaz has a few more geological curiosities in store for you, so keep your eyes peeled!
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Speleorando, located on this discovery trail, is an introduction to caving where it is advisable to be accompanied by a guide.
Phone : 04 79 54 63 65
Email : accueil.lesaillons@chamberymontagnes.com
Website : https://www.chamberymontagnes.com/aillonsmargeriaz/
Facebook : https://www.facebook.com/LesAillonsMargeriaz
From 01/05 to 30/11 daily.
Subject to favorable weather.
Grand Chambéry Alpes Tourisme - 09/12/2025
www.chamberymontagnes.com
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Not suitable for strollers
Head for Margériaz and, at the bend before you reach the resort, turn left at "Place à Baban", where you'll see a sign for "Sentier des Tannes et Glacières".
A discovery booklet is available for purchase at your nearest tourist office. It provides explanations and anecdotes about each geological curiosity you encounter!
An interpretation booklet is on sale at the following reception points for €2.50 at the Aillons-Margériaz tourist office: chef lieu, 73340 Aillon-le-Jeune and at the Chatelard tourist office: Avenue Denis Therme, 73630 Le Chatelard
1/ From the parking lot, follow the signs for the GRP Tour des Bauges and the discovery trail. The path climbs into the Margériaz forest, following the stages of the thematic karst discovery trail.
2/ At the crossroads on the Grand Rafou, enter the mountain pasture (you can shorten the hike by turning right towards the sheepfold) and continue up into the mountain pasture.
3/ Reach the ridges and follow them to the right to the Margériaz summit, passing by the beautiful Pont de Pierre site.
4/ From the summit, descend to the Bergerie chairlift.
5/ Go around it to the left, then pass under the ski lift to reach the Bergerie du Margériaz chalets along a path in the alpine pastures.
6/ Below the sheepfold, aim for a large cross just beyond the Alpage ski lift, then enter the forest.
7/ Continue downhill on the discovery trail, passing close to the Tanne au Névé site and its Spéléorando.
8/ Take the Place à Baban trail and join the parking lot.
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