Autumn time. On the last steep wall.
K4 Car-free possible

La Berneuse, Bergstation, VD

Via ferrata Tour d'Aï

This K4 via ferrata climbs the exposed west face of the Tour d'Aï (2331 m) above Leysin.

Image: Daniel Anker

Difficulty

K4

Very difficult via ferrata

Current status

Unknown

No reliable current status yet

Checked 2 h ago

Total time

3 h 20 min

Approach + via ferrata + descent

Route description This K4 via ferrata climbs the exposed west face of the Tour d'Aï (2331 m) above Leysin, an area shaped by climbing pioneers like Dougal Haston and John Harlin. Expect a demanding, well-protected route with dramatic views over Lake Geneva and a slightly overhanging crux section. The full outing, including approach and descent, takes around 3½ hours.

This K4 via ferrata climbs the exposed west face of the Tour d'Aï (2331 m) above Leysin, an area shaped by climbing pioneers like Dougal Haston and John Harlin. Expect a demanding, well-protected route with dramatic views over Lake Geneva and a slightly overhanging crux section. The full outing, including approach and descent, takes around 3½ hours.

Route map

Download GPX

Zoomable topographic map showing available approach, via ferrata, descent, start, finish, and parking geometry. The Download GPX link near the route map heading provides the same route geometry as a file.

Annotated route info/map available from sac-cas.ch.
Start
46.35962, 7.00267
Finish
46.34455, 7.00890
Parking
-

Approach / VF / Descent

Segment timings and vertical stats from the current VFOS dataset.

Total: 3 h 20 min

Approach

Access
Duration
1 h
Distance
2.1 km
Ascent
300 m
Descent
150 m
Elevation
-

From the Berneuse gondola top station (2045 m), descend north to the chairlift base in a small basin (1905 m). Continue ahead, then left and zig-zag right past the chairlift up to a grassy ridge. Climb briefly before traversing right beneath the cliff to reach the via ferrata's start on the west face of the Tour d'Aï (about 2190 m).

Via ferrata

K4
Duration
1 h
Distance
114 m
Ascent
130 m
Descent
-
Elevation
2,330 m

The route follows the Voie des Vires, traversing ledges diagonally rightward before climbing through a chimney and a vertical to slightly overhanging wall. It then crosses a grassy band leftward and follows the ridge up to the summit of the Tour d'Aï (2331 m).

Descent

Exit
Duration
1 h 20 min
Distance
2.5 km
Ascent
160 m
Descent
460 m
Elevation
-

Descend the exposed, marked normal route along the southeast ridge, initially on its left side before following the narrowing arête, which broadens into grassy terrain. Continue down the grassy flank, bearing left above cliffs, then through a rocky gully. Turn right toward the Chalets d'Aï (1891 m), pass Lac d'Aï, and climb back up to Berneuse station. Alternatively, from Lac d'Aï, turn left and descend southwest, passing under the cable car to Le Temeley (1704 m) before zig-zagging through forest down to Leysin-Feydey.

Total duration
3 h 20 min
Total distance
2.2 km
Total ascent
430 m
Total descent
150 m

Escape points

No escape point details are recorded yet.

Opening season

Typical published season

Source
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Transport

Plan around the trailhead, parking, and public transport links.

Last lift down

Check operator

Cable car

Berneuse (Aï)

https://www.region-du-leman.ch/de/P22651/kabinenbahn-leysin-berneuse

Coordinates
46.35985, 7.00181

Route feel

VFOS editorial ratings on a 1-5 scale.

Ratings -

Variety

How much the route changes in movement and terrain.

- -

Complexity

Route-finding and technical problem-solving beyond pure grade.

- -

Beauty

Scenery, setting, and overall aesthetic quality.

- -

Exposure

Airiness and exposure independent of technical difficulty.

- -

Sustained effort

How continuous or relentless the physical effort feels.

- -

Crux tags

No crux tags are recorded yet.

SAC-CAS route profile

Source ratings on the SAC-CAS 1-4 scale.

Official source
Mountain experience
3/4
Power
2/4
Endurance
2/4
Psyche
2/4

Photos

1 source photos
Autumn time. On the last steep wall.
Autumn time. On the last steep wall.© Daniel Anker

Safety notes

Check current local information before setting off.

Rega 1414

Emergency

In Switzerland, call Rega on 1414 for mountain rescue. European emergency number: 112.

Mobile signal

Cell coverage can be patchy in gorges, valleys, and behind ridges. Download route notes and tell someone your plan.

Storms

This route is flagged as exposed or high-grade; avoid thunderstorms, wet cables, and fast-changing alpine weather.

Sources & data Attribution, source priority, and field-review status for this route.

Referenced sources

  • Opening season · Alpes Vaudoises

    https://www.alpesvaudoises.ch/en/P482/leysin/tour-dai-via-ferrata

    Official

    Last scraped: 2 Aug 2026 · Opening-season source retained for status provenance.

  • SAC-CAS approach

    https://www.sac-cas.ch/de/huetten-und-touren/sac-tourenportal/tour-dai-13/berg-und-alpinwandern/zustieg-via-ferrata-tour-dai-892/

    Official

    Last scraped: 2 Aug 2026 · Official SAC-CAS Route Portal source; English API data and attribution retained.

  • SAC-CAS return

    https://www.sac-cas.ch/de/huetten-und-touren/sac-tourenportal/tour-dai-13/berg-und-alpinwandern/abstieg-via-ferrata-tour-dai-893/

    Official

    Last scraped: 2 Aug 2026 · Official SAC-CAS Route Portal source; English API data and attribution retained.

  • SAC-CAS via ferrata

    https://www.sac-cas.ch/de/huetten-und-touren/sac-tourenportal/tour-dai-13/klettersteig/via-ferrata-tour-dai-717/

    Official

    Last scraped: 2 Aug 2026 · Official SAC-CAS Route Portal source; English API data and attribution retained.

Field review

No contested fields are currently flagged.

At a glance

Location
La Berneuse, Bergstation, VD
Elevation range
2,330 m
Car-free possible
Yes

Weather

Trailhead forecast