Wallonia · about 10 km from Yvoir
Carrière de Denée
Closed to divers
The UBS strongly advises against diving here until the site has been re-evaluated: blocks are falling from the ceiling. Ask the UBS whether that advice still applies.
- CertificationFull cave
- SpecialFlooded mine or quarry
Diving and fills
Dive here with
No dive centre guides here yet. Do you dive here with guests? Add your centre for free →
Fills nearby
- Fill stationNérée Diving (Namur)Air, nitrox, O₂, trimix (200 and 300 bar)Route ↗
- Fill stationCarrière de Villers-Deux-Églises (V2E)Air and nitrox (200, 230 and 300 bar)Route ↗
- Fill stationDive Factory (Braine-l'Alleud)Air, nitrox, trimix, O₂, helium; 200 and 300 barRoute ↗
Now at Carrière de Denée
The dive
A flooded underground quarry ('carrière souterraine' per the UBS). The WGD cave-diving working group of the Flemish federation VVS also dives here.
Profile and sections
A flooded underground quarry ('carrière souterraine' per the UBS). The WGD cave-diving working group of the Flemish federation VVS also dives here.
Practical: leisure dives only: no commercial activity, courses or drills.
- Depth and profile
- Depth and length not published; the UBS mentions a main gallery at the entrance
- Configuration
- UBS rules: independent cylinders (sidemount, doubles with the isolator closed, or two unconnected cylinders of equal size), each with its own regulator and SPG. CCR: at least one bailout with a backup inflator and SPG. Helmet, three lights and redundant buoyancy (drysuit or double wing) are mandatory.
- DPV: unknown
- No data on scooter use or passage size.
Who can dive where
- At least Full cave
- Configurations: Backmount / twinset / Sidemount / CCR / Small cylinders / no-mount (speleo sumps)
- Configuration unknown — research beforehand
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
Only through the UBS (members, their guests or an authorised organisation), with a key; the entrance is closed with a chain and padlock. You may drive onto the site, but if all parking spaces are taken, dive elsewhere. Keep the way clear for rescue services.
Around Carrière de Denée
Fills3 fill stations · nearest 19 km
Nérée Diving (Namur)
Rue Père Cambier 17, 5000 Salzinnes (Namur)
Air, nitrox, O₂, trimix (200 and 300 bar)
Mon 11:00–19:00, closed Tue, Wed–Fri 11:00–19:00, Sat 11:00–18:00; Sun: ask
Dive shop with its own club: weekly quarry dives and pool training, tec diving courses (OC and rebreather: rEvo, Horizon). Walk-in fills for visitors: ask.
Carrière de Villers-Deux-Églises (V2E)
Rue des Traigneaux 104A, 5630 Cerfontaine
Air and nitrox (200, 230 and 300 bar)
Book via carrierev2e.be; hours and rates on the operator's site
Open (non-overhead) dive quarry, to ~28 m, with changing rooms and a café. Lines and cenote-style decor are laid out underwater to simulate cave dives without an overhead: good for introduction and practice (following the line blind, jumps) before a cave course.
Dive Factory (Braine-l'Alleud)
Chaussée de Tubize 475, 1420 Braine-l'Alleud
Air, nitrox, trimix, O₂, helium; 200 and 300 bar
Ask
Dive shop with gas blending. Second shop in Wezembeek-Oppem (+32 2 353 08 98). CCR supplies (sofnolime): ask.
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