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Thônes Via Ferrata

Thônes via ferrata (Roc de Cornillon / Roche à l'Agathe), vertical and athletic, visible from the town center, 20 min from Annecy.

Thônes via ferrata, via ferrata in Haute-Savoie
Guilhem Vellut from Annecy, France · CC BY 2.0 · Wikimedia Commons
At a glance
Type
Via ferrata
Access
Free access (gear required)
Price
Free (gear rental approx. €15–20)
Duration
2–3 h (ascent and descent)
Best season
April to November
Town
Thônes

Official source →

What is Thônes Via Ferrata

The Thônes via ferrata, also called Roche à l'Agathe, is a major equipped route that directly overlooks the center of Thônes. With its 600 meters of cable and a 235-meter elevation gain, this alpine route offers a vertical and athletic experience that attracts experienced climbers seeking thrills.

The route begins with an airy monkey bridge that immediately sets the tone, followed by steep and technical sections alternating metal rungs and natural holds on limestone rock. The highlight of the route is the Hermit's Overhang, a passage rated ED (extremely difficult) that severely tests arms and mental strength — an inverted ladder allows bypassing this difficulty. Two escape routes mark the route to allow exiting before the greatest difficulties.

Located at low altitude (start at 660 m, arrival at 895 m), the Thônes via ferrata differs from the alpine routes of La Clusaz or Grand-Bornand by its year-round accessibility (except when snow-covered) and its proximity to the village — the whole town can watch the climbers! The south-west exposure guarantees generous sunshine from 10 a.m. in summer, but can make the rock scorching in the afternoon. Access is free, but specialized equipment (harness, double energy-absorbing lanyard, helmet) is essential, as well as good physical condition and no fear of heights. For the less experienced, guidance by a mountain guide is highly recommended.

Activities

What you can do here

Practical

Practical information

Address
Frêtes du Vargnoz via ferrata, Roc Lancrenaz road, 74230 Thônes View on map
Coordinates
45.8800° N — 6.3300° E (approximate)
Altitude
Start ~850 m, summit ~1,100 m (Aravis valley)
Opening Hours / Season
Free access, practicable April to November weather permitting (low altitude, variable exposure).
Rates
Free. Thônes-Aravis Guide Office supervision: €60-90/person half-day gear included.
Phone
Thônes-Cœur des Vallées Tourist Office: +33 4 50 02 00 26
Official website
thones-valsulens.com (Tourist Office) — franceviaferrata.fr (topo)
Access / Parking
Free car park at foot of route, access from Thônes via Roc Lancrenaz road. Short approach (10-15 min).
Duration
Approach 10-15 min + via ferrata 1 h 30 - 2 h + return 20 min. Total ~2 h 30.
Required equipment
Mandatory: harness, double absorber lanyard, helmet, hiking boots. Recommended: water, gloves, windproof.
Level / Public
PD/AD. Good intro via in the Aravis. Min height 1.40 m, min age 10-12.
Booking
No booking for free access. For supervision: contact Thônes Tourist Office for guide office list.
Access

How to get there

Nearest stops

  • Gare Routiere · Cars Région Haute-Savoie · N-ARAVISBUS, Y62, Y63 · 184 m
  • Lycée - College Saint-Joseph · Cars Région Haute-Savoie · Y62 · 597 m
  • Groupe Scolaire Arthur Thurin · Cars Région Haute-Savoie · N-ARAVISBUS · 669 m

Transport data verified on 2026-06-15 · source transport.data.gouv.fr (Licence Etalab 2.0)

Parking

  • Free · 111 m · Go →
  • Parking de la Gare · Free · 201 m · 45 spaces · Go →
  • Free · 247 m · Go →

Parking checked on 2026-06-15 · © les contributeurs d'OpenStreetMap sous licence ODbL

When to visit

When to visit

Open year-round depending on weather conditions. Best period: April to November. Not practicable in rain, snow, ice or storms. In summer, prefer morning to avoid heat.
Nearby

Where to eat, drink, stay

Photos

Gallery

FAQ

Frequently asked questions

Do I need a guide?

Access is free, but a guide is highly recommended if you are not autonomous, equipped and experienced. Several guide offices offer supervised outings with equipment provided.

What is the difficulty level?

Route rated D (difficult) to ED (extremely difficult) depending on the exit chosen. The 1st part is D, the 2nd D+ and the final overhang ED (avoidable via ladder). Good physical condition and arm endurance essential.

How much time should I plan?

Allow 2–3 hours total: 10 min approach walk, 1h30 to 2h30 for the route depending on level, and 30 to 45 min for descent via trail.

Can equipment be rented on site?

Yes, Versant Nord shop (48 av. d'Annecy, Thônes, tel. 04 50 32 10 02) offers complete via ferrata equipment rental: harness, lanyards with absorber, helmet.

Is the via ferrata suitable for children?

Not recommended for children or beginners. The route is vertical, athletic and very exposed. Minimum recommended age: 13 years, with good physical condition and guide supervision.

Is it crowded?

The Thônes via ferrata is popular, especially on weekends and in high season. For more peace, start early in the morning on weekdays.

What to do in bad weather?

Never engage in storms, rain or wet rock (risk of slipping). Check weather before leaving. If in doubt, contact Thônes Tourist Office at 04 50 02 00 26.

Where to eat after the via ferrata?

Several restaurants in central Thônes: Hôtel de l'Hermitage (Savoyard specialties), Philtre (local and organic cuisine), brasseries and pizzerias. Thônes is also the capital of farmhouse Reblochon cheese!

Sources

Sources & verification

Multi-source verification at publication. Information may change — confirm with the official operator before travelling.

Published 3 juin 2026·Updated 16/06/26

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