Ardèche · about 6 km from Saint-Ambroix

Peyraou de Chazelle

Max depth36 m
CertificationFull cave
Water temperature≈ 12–13 °Cestimated, no reports yet
SpecialSidemount

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Now at Peyraou de Chazelle

Very high water: the river at this cave is higher than on 93% of the days in the past year.

At such a level springs are often murky, and some caves close. Check locally whether diving is possible. This notice comes from the river gauge (Ardèche, Vallon) and goes away by itself when the water drops.

Status: Open
Visibility: probably poorFlow Ardèche, Vallon: 175 m³/s · Very high water · rising
Water temperature: 12–13 °C, depending on the season
Local reports: Ardèche Caves Conditions ↗
Rain, next 3 days: 11 Wed4.1 mm13°/17°12 Thu40.3 mm12°/15°13 Fri4.4 mm5°/14°

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How was the visibility in the cave? Report it

poor visibility5–10 mgood visibility

Date of your diveSign in to report the visibility

This is about the visibility inside the cave, not in the head pool or the open water at the entrance.

TemperatureDate of your diveSign in to report the temperature

Report what your dive computer showed in the cave. Only the number of reports, the temperatures and the latest date are public.

Sources: Hub'Eau (Vigicrues) and MET Norway (CC BY 4.0). Updated daily.

The dive

A resurgence with violent floods, as a 5 m high debris cone shows. Explored in 1973 (40 m / -13), in 1989–1992 (110 m / -26) and in March 1997 by C.

Very delicate restriction right at the entrance: 5 to 8 minutes to get through. Only with experience in tight passages.

Source: plongeesout.ffspeleo.fr – Peyraou de Chazelle ↗

Violent floods (5 m high debris cone at the entrance): dive only at low water.

Source: plongeesout.ffspeleo.fr – Peyraou de Chazelle ↗

Profile and sections

A resurgence with violent floods, as a 5 m high debris cone shows.

Explored in 1973 (40 m / -13), in 1989–1992 (110 m / -26) and in March 1997 by C. Baudu (about 440 m). The terminal choke may be the same as the one beyond the réseau Penez of the Baume de Chazelle.

Depth and profile: S1 310 m / -36 (5 × 3 m conduit, clay slope up into a large chamber) · dry passage 100 m (10 × 10 m), chamber 'Cat' 25 × 15 m · S2 30 m / -16 (partly flooded rift, no continuation) · about 440 m development (1997); CDS07: -36/+74 m
Configuration: Sidemount or small cylinders only: a very delicate restriction right at the entrance. Backmount is not possible.
DPV: Not DPV-suitable (estimate): Tight entrance and short sumps; not a scooter dive.

Who can dive where

CaveAt least Full cave
Whole caveConfigurations: Sidemount / CCR / Small cylinders / no-mount (speleo sumps)
Whole caveGoes down to 36 m (trimix or deco may be needed) · doesn't decide who may dive
Whole caveExperienced divers only · doesn't decide who may dive

Dry sections / haulingExperienced diversDepends on water level or swell

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.

Cave map

plongeesout.ffspeleo.fr – survey (FFS) ↗

How to get there

Small spring pool in the Saint-André-de-Cruzières basin; how inviting it looks varies with the season.

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Around Peyraou de Chazelle

FillsNo fill station known nearby

Where to sleepAround Saint-Ambroix on Booking.com ↗

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Other sites6 within 4 km

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