Barrois · about 5 km from Ancerville
Fontaine de la Bezerne
- Max depth20 m
- CertificationFull cave
- SpecialSidemount
Diving and fills
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The dive
A clay-laden spring, with clay banks, dunes and gravel throughout. Visibility is 1–2 m going in and often zero coming out; 4–5 m at best. At high discharge the water alternates between clear and muddy.
Profile and sections
A clay-laden spring, with clay banks, dunes and gravel throughout. Visibility is 1–2 m going in and often zero coming out; 4–5 m at best. At high discharge the water alternates between clear and muddy. Allow an hour for the round trip to 500 m, and at least 4 hours to the end and back. The water temperature is not published.
Belgian cave divers explored the spring in 1989–1993; little has been published on the later GERSM exploration.
- Depth and profile
- One long sump: 1,670 m (1993), 1,760 m (2007), 1,850 m according to the GERSM with exploration ongoing. Average ~-10 m, between -2 and -20 m; -6 m at 30 m, -10 m at 390 m. Air bells along the way, e.g. around 200, 500, 800 and 880 m.
- Configuration
- The first explorers dived with 2×12 l on the back and a 20 l belly cylinder to 500 m. Since 2007 the boulder choke at 390 m has deteriorated so much that it can only be passed with side-slung cylinders: sidemount.
- DPV: Not DPV-suitable
- The poor visibility rules out a scooter (stated on the site sheet).
Who can dive where
- At least Full cave
- Configurations: Backmount / twinset / Sidemount / CCR / Small cylinders / no-mount (speleo sumps)
- Goes down to 20 m (trimix or deco may be needed)
- Experienced divers only
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
Entrance below a road embankment, through the pipes that carry the water away. Owner and access rules not published: ask CDS 55 or the GERSM beforehand, who still explore here.
Around Fontaine de la Bezerne
FillsNo fill station known nearby
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