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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,701 companies indexed · Last updated: today
DirectoryArts, Culture & RecreationLeisure FacilitiesSt-LéonardLac Souterrain de St-Léonard SA
Lac Souterrain de St-Léonard SA Logo
Verified· 4 sourcesTrust Score
Summary

About the company

Lac Souterrain de Saint-Léonard is a tourism and leisure company offering visits to an underground lake. The core activities include: guided tours and visits to the underground lake for individuals, groups, schools and companies; organization of concerts and other events; provision of gastronomic services (food and beverages); rental of accommodations in the surrounding area; and information and consulting services for visitors about the history, geology and environment of the underground lake.

AI-generated
Offering

Products & services

Industry:Leisure Facilities
✓ Offered7
Individual visits
Guided boat tours on a barque of around 30 minutes, in French, German and English, with booking recommended, a learning area, boutique and cafeteria on site.
Group visits
Group visits on reservation for a minimum of 20 people, sometimes on several boats, with special time slots, coach parking and a total duration of around 60 to 90 minutes.
School visits
Fun and educational visits for classes, in complete safety, with a guided boat tour, learning area, coach parking and school rates.
Private events
Private visits, aperitifs on board the boats and private concerts outside opening hours, for company outings, clubs or groups.
Concerts
Acoustic concerts and music events in the underground lake, with artists on a barque and the audience seated on other boats.
Catering
Buvette with drinks and snacks, crêpes, pizzas, Walliser-style platters, shaded terrace, and coffee-croissant options or aperitifs available on reservation.
RailAway CFF combined offer
Combined offer with public transport, giving access to a reduced fare and available at CFF ticket counters, via Rail Service or online.
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4.5/5

Lac Souterrain de St-Léonard SA

Trust & reputation

ranQ Trust Score of Lac Souterrain de St-Léonard SA: 4.5 out of 5.0

Trust Score4.5/ 5.0

Excellent

x

Data basis 100% · As of October 2026

Lac Souterrain de St-Léonard SA scores 85.7 out of 100 points in the Reputation area of the ranQ Trust Score. This area carries 42% of the weighting.
x
CriterionValueWeight
  • Review quality: The average rating across all connected sources, smoothed against the industry mean. So 5.0 stars from three reviews do not outrank 4.7 from three hundred.75.024%
  • Review volume: The number of reviews across all sources. The scale is logarithmic: the first reviews count the most, and the maximum is reached at 50 reviews.100.010%
  • Review recency: The age of the most recent review. Two-year-old reviews deliberately sit in the middle, because that is normal for Swiss SMEs. Only after three years without a new voice does the value drop markedly.100.08%
Lac Souterrain de St-Léonard SA scores 85.5 out of 100 points in the Substance area of the ranQ Trust Score. This area carries 28% of the weighting.
x
CriterionValueWeight
  • Establishment: Years since founding or brand launch, logarithmic. The maximum is reached at 15 years.100.012%
  • Company size: The headcount band, researched by ranQ or stated by the company. It is scored in steps rather than by head count, because the data only provides bands.55.07%
Lac Souterrain de St-Léonard SA scores 86.7 out of 100 points in the Identity area of the ranQ Trust Score. This area carries 22% of the weighting.
x
CriterionValueWeight
  • Verification: Official register entry (commercial register with UID or professional-body record, 55 points), confirmed domain (20 points) and confirmed ranQ profile (up to 25 points, depending on completeness).86.722%
Lac Souterrain de St-Léonard SA scores 80.0 out of 100 points in the Visibility area of the ranQ Trust Score. This area carries 8% of the weighting.
x
CriterionValueWeight
  • Website authority: Ahrefs' Domain Rating measures, on a scale of 0 to 100, how strongly a website is linked from other websites. For Swiss SMEs the range up to 40 is typical; the maximum is reached at 35.100.04%
  • Media authority: Quality and number of editorial mentions, weighted by the importance of the source, plus the recency of the latest high-quality mention.60.04%
Qualifications+0.00

Lac Souterrain de St-Léonard SA reaches a ranQ Trust Score of 4.5 out of 5.0 — rated «Excellent». The rating draws, among other things, on 4.5 out of 5 stars from 4314 customer reviews. As of October 2026.

The Trust Score cannot be bought and is calculated from publicly verifiable data.

Reviews

Aggregated rating

Aggregated rating
4.5
of 5

Aggregated from 4314 reviews across all connected sources

Sources
GGoogle4.54314
★TrustpilotSoon
PProvenExpertSoon

Further sources are added continuously and factored into the ranQ Rating.

Press

Media

June 4, 2026Media
Sous la montagne, un trésor : à la découverte du lac souterrain de St‑Léonard.
rts.ch
October 17, 2025Media
Comment ce lac souterrain valaisan résiste au surtourisme
watson.ch
September 15, 2025Media
Im Wallis: Entdecken Sie Europas grössten unterirdischen See
nau.ch
March 16, 2024Media
St-Léonard: le lac souterrain exploité depuis 75 ans a rouvert ses portes après sa pause hivernale
lenouvelliste.ch
July 24, 2021Media
[18/42] A Vaud l’eau - Le lac de Saint-Léonard est unique par sa taille et sa formation
24heures.ch

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Location

Rue du Lac 21
1958 St-Léonard
Opening hours
Mon
10:00 - 17:00
Tue
10:00 - 17:00
Wed
10:00 - 17:00
Thu
10:00 - 17:00
Fri
10:00 - 17:00
Sat
10:00 - 17:00
Sun
10:00 - 17:00

At a glance

Legal form
Corporation
UID
CHE-109.807.104
Founded
2003 · 23 years
Last commercial register change
July 23, 2021
Employees
1 to 10
Legal form: Graded by liability and disclosure. The weight is kept small: a sole proprietorship is not a dubious company, it is just liable differently.100.06%
  • Branch offices: Branch offices linked in the commercial register. Having none is normal and costs no points.70.03%
    • Full methodology

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