Lot · about 3 km from Brengues
Exsurgence du Bial
- Max depth52 m
- CertificationFull cave
- SpecialSidemount
Diving and fills
Dive here with
Fills nearby
- Lot Filling Station (Proteushop)Air, nitrox (any %), trimix (incl. 21/35, 18/45, 15/55, 10/70 and custom), O₂ 200/300 bar
- The Cave To BeAir, nitrox and trimix up to 320 bar (standard 21/35, 18/45, 15/55, 10/50), O₂ up to 220 bar
What it looks like
All 2 videos and posts
Videos and posts
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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 tight entrance with lots of small stones and an unstable gravel slope. At first there is zero visibility; after 10–15 m it clears.
Profile and sections
A tight entrance with lots of small stones and an unstable gravel slope. At first there is zero visibility; after 10–15 m it clears. S1 (75 m) comes out in a short dry section, and then S2 is a roomy, comfortable passage down to -18 m.
The spring is also called Trou du Diable, and locally Source Bleue. In 1976 the Figeac clubs pumped the pool dry and got through S1; S2 was explored in 1989, and in October 1993 S2 and the side branch S2 bis were connected. The entrance kept getting blocked again: only since 2010 has it been dug open and shored against shifting gravel. The system is >2 km long with 5 sumps; S5 is 602 m.
Practical: according to the municipality few divers come here, and they are expected to report their dive beforehand.
- Depth and profile
- S1 75 m / -7 m; S2 340 m / -18 m (passage 3 by 6–8 m), with side branch S2 bis 50 m / -4 m; S5 to -52 m
- Configuration
- Sidemount mandatory (entrance passage)
- DPV: Not DPV-suitable
- Narrow, shored gravel entrance (sidemount only) and 5 sumps with dry sections; unsuitable
Who can dive where
- At least Full cave
- Configurations: Sidemount / Small cylinders / no-mount (speleo sumps)
- Goes down to 52 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
Commune of Espagnac-Sainte-Eulalie: from Marcilhac take the D41 towards Figeac, turn right into Sainte-Eulalie before the bridge and cross it. The spring is on the left bank of the Célé, 130 m downstream of the bridge, in a recess of 7 by 9 m; the Bial brook sometimes runs dry in summer.
Around Exsurgence du Bial
Fills2 fill stations · nearest 6 km
Lot Filling Station (Proteushop)
180 route de la Tuilerie, 46100 Cambes
Air, nitrox (any %), trimix (incl. 21/35, 18/45, 15/55, 10/70 and custom), O₂ 200/300 bar
Daily 9:30–19:30, year-round
About 20 min from the Ressel. Standard mixes ready to go; order custom blends in advance (WhatsApp). Also a dive shop (Proteushop), rental of scooters, lights and twinsets, and cave training (PSAI/TDI).
The Cave To Be
842 rue Émile Zola (D14, Bournazel), 46500 Gramat
Air, nitrox and trimix up to 320 bar (standard 21/35, 18/45, 15/55, 10/50), O₂ up to 220 bar
Open year-round (except between the end-of-year holidays), daily 8:30–19:00
Near Gramat, handy for the sites around Gramat and Padirac. Guided dives in 16 caves of the Lot, at your own certification level (air or nitrox without deco, or one trimix dive with deco). Also courses from cavern to full cave, sidemount, CCR and scooter, rental of overhead gear, a shop and accommodation. Contact: Olivier.
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News
All (2)
Nearby
Articles about cave diving that name a place within 25 km of this site, but no cave by name. They're not necessarily about this site.
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 11 Nov 2026.
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