Hérault and Gard · about 9 km from Saint-Martin-de-Londres
Source du Lirou
- Max depth7 m
- CertificationFull cave
Diving and fills
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Fills nearby
- Fill stationLa Palanquée New'sNitrox and oxygen per a 2018 forum post; trimix and pressure: askRoute ↗
What it looks like
SPÉLÉO | ÉVENT & GROTTE DU LIROU (34) - UNE GALERIE AVEC DU CO2 - VOL EN DRONE SPÉLÉO | BOULIDOU DES MATELLES APRES LES CRUES - GROTTE DU LIROU NOYÉE
All 2 videos and posts
Videos and posts
From other divers, via YouTube, Instagram and Facebook. They only load when you click; after that, Google's or Meta's privacy rules apply.
SPÉLÉO | ÉVENT & GROTTE DU LIROU (34) - UNE GALERIE AVEC DU CO2 - VOL EN DRONE SPÉLÉO | BOULIDOU DES MATELLES APRES LES CRUES - GROTTE DU LIROU NOYÉE
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Other people's footage, not advice: how someone else dives here says nothing about what suits your team. Dive within your training.
The dive
A permanently fed spring with little level variation. A link with the Lez is proven but unclear. Both sumps were first passed in 1950.
1 earlier accident or incident has been reported at this cave. Read what happened ↓
Profile and sections
A permanently fed spring with little level variation. A link with the Lez is proven but unclear. Both sumps were first passed in 1950.
- Depth and profile
- S1 40 m / -7 · air chamber (~10 m across, 5–6 m high) · S2 10 m / -2; passages 3–4 m wide, 2–5 m high; 800 m surveyed
- Configuration
- Short, roomy sumps: backmount or sidemount
- DPV: Not DPV-suitable (estimate)
- 10–40 m sumps: no gain.
Who can dive where
- At least Full cave
- Configurations: Backmount / twinset / Sidemount / CCR / Small cylinders / no-mount (speleo sumps)
- Goes down to 7 m (trimix or deco may be needed)
This is how the planner decides who in your team may dive this cave. Rules your own trip adds (organizer, a mail, the AI) show with your trip.
How to get there
In Les Matelles follow the Lirou stream through the village to the foot of the large entrance porch.
Around Source du Lirou
Fills1 fill station · 25 km
La Palanquée New's
Boulevard Frédéric Fabrèges, 34250 Palavas-les-Flots
Nitrox and oxygen per a 2018 forum post; trimix and pressure: ask
Mon–Fri 9:00–19:00, Sat 9:30–12:30 and 13:30–19:00, closed Sun (2026)
Large dive shop on the coast near Montpellier (~1 h from Ganges, estimate). Its own site does not mention fills: call ahead. In 2018 a local diver called it the only place around Montpellier for nitrox and O₂.
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News
All (1)
Accidents and incidents
What happened at this cave before, with the sources. No names are given; read it as a lesson for your own planning.
- Fatal accident on 8 October 1950 during a dive back through the sumps, a few weeks after the first crossing.
Access and rules change: check what applies locally right before your trip. Source: GDELT Project and the news feeds of diving magazines. Search for more news ↗ Searched automatically, last on 13 Nov 2026.
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