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Ardèche · about 7 km from Ruoms

Font Méjanes

  • Max depth33 m
  • CertificationFull cave
  • Water temperature≈ 12–13 °Cestimated, no reports yet
  • SpecialSidemount

Diving and fills

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The dive

A small spring under a low porch on a fault, below the D246. The water is clear on the way in, then there is clay in suspension. The end is choked with sand.

Profile and sections

A small spring under a low porch on a fault, below the D246. The water is clear on the way in, then there is clay in suspension. The end is choked with sand.

The spring was surveyed by J.-P. Baudu (1999, 2001). It belongs to the Bourbouillet–Reméjadou area but drains a separate sub-basin. OSM tags the spring as intermittent.

Depth and profile
Single sump: 199 m / -33 m; ends from ~-32.5 m in a sand-filled bedding plane.
Configuration
Small, clayey spring: sidemount is most practical; backmount and CCR possible but cramped and muddy (estimate).
DPV: Not DPV-suitable (estimate)
Short, clayey 199 m sump: no scooter.
Who can dive where
  • CaveAt least Full cave
  • Whole caveConfigurations: Backmount / twinset / Sidemount / CCR / Small cylinders / no-mount (speleo sumps)
  • Whole caveGoes down to 33 m (trimix or deco may be needed) · doesn't decide who may dive

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

How to get there

From Notre-Dame follow the D246 to the first bridge (160 m altitude), then another 700 m to a left-hand bend. The spring lies below the road, opposite three clearly visible dolmens (Dolmens de Font Méjanne).

Plan your route ↗

Around Font Méjanes

FillsNo fill station known nearby
Where to sleepAround Ruoms 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 ↗
    Facebook group

    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).