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Ardèche · about 6 km from Saint-Ambroix

Peyraou du Moulin

  • Max depth11 m
  • CertificationCavern
  • Water temperature≈ 12–13 °Cestimated, no reports yet

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The dive

A small spring pool with good visibility, but no longer a cave dive: by 2021 the passage was blocked at -6 m. At normal water levels the outflow runs off to the right into a shallow stream full of water plants.

Private property: ask the owner for permission beforehand (contact details in the guide, p. 46). The spring supplies drinking water to Saint-André-de-Cruzières: also ask the mairie whether diving is allowed.
Profile and sections

A small spring pool with good visibility, but no longer a cave dive: by 2021 the passage was blocked at -6 m. At normal water levels the outflow runs off to the right into a shallow stream full of water plants.

This is the 'résurgence du Moulin' near Pichegru, where the underground Claysse resurfaces, downstream of the Peyraou de Chadouillet. Per Clerc (2009) it is the only permanent resurgence of the Saint-André-de-Cruzières basin; it reacts within hours to heavy rain.

Depth and profile
Spring pool of ~5 × 5 m. From the shallow edge it drops 5 m vertically; then a slope of stones, gravel and sand with a few spring vents runs fairly quickly down to the lowest point at -11 m, where the ceiling soon meets the floor. In 2021 the passage was already blocked at -6 m.
Configuration
Since the passage silted up (2021) no longer a cave dive: a small cylinder will do for the pool and the shaft. Getting further would take a major dig.
DPV: Not DPV-suitable
A 5 × 5 m pool; the passage was blocked at -6 m in 2021.
Who can dive where
  • CaveAt least Cavern
  • Whole caveConfigurations: Backmount / twinset / Sidemount / CCR / Small cylinders / no-mount (speleo sumps)
  • Whole caveGoes down to 11 m (trimix or deco may be needed) · doesn't decide who may dive
Depends on water level or swellPermission 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

From Saint-Sauveur-de-Cruzières towards Saint-André-de-Cruzières. Just before Pichegru turn left into the 'Traverse du Moulin' (sign 'Les Moulin Champaras'). The narrow lane crosses a dry river bed and passes a property on the left. Turn left into the 'Route du Moulin' and left again after 50 m: the spring is 20 m behind that property. You can drive right up to the water.

Plan your route ↗

Around Peyraou du Moulin

FillsNo fill station known nearby
Where to sleepAround Saint-Ambroix on Booking.com ↗

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Other sites6 within 5 km

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Sources, sharing and disclaimer

Current conditions

Visibility, flow and water levels change quickly. Right before your dive, check what other divers report:

  • Ardèche Caves Conditions ↗
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    Current conditions in the Ardèche caves: visibility, flow, water level, state of the line and temperature.

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Certification requirements, configurations and trimix depths are estimates for planning. Always check them locally and dive within your training. Compiled from web research (Sept 2026) and the guide (2024 edition): CDS 07 and CDS 30, plongeesout.ffspeleo.fr, Spelunca, Grottocenter, foussoubie.fr, club reports and news. Page numbers refer to Stefan Schiemann's Cave Diving Guide Ardèche, Gard & Vaucluse. Map pins come from the GPS coordinates in the guide, from Grottocenter/OpenStreetMap or were converted from Lambert grid references (may be 50–100 m off). For some caves the data is thin or old: check it in the guide and locally. Certification requirements are estimates. Drive times are calculated by road for each stay (OSRM, OpenStreetMap).