9 sites · down to 88 m · 1 suitable for an intro team
Cave and quarry diving in Wallonia
- Sites9
- Max depth88 m
- For intro teams1
- Dive centres4
Diving and fills
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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 ↗
Why come here
Wallonia is about flooded underground quarries: around Anhée and Yvoir the sites managed by the caving federation UBS, open only to members and their guests, and near Namur the club quarry at Rhisnes with a covered cave section. At the UBS sites a foreign diver dives under a club member's wing, keys and bookings go through the clubs, and commercial activity, courses and drills are banned; at Denée the UBS currently strongly advises against diving. The classic sumps of Remouchamps, Éprave and the Lesse at Han were explored by Belgian cave divers but are not freely accessible anywhere. No water temperatures are known, so expect cold water at depth and in winter. Dinant makes a handy base, and the open quarry at Villers-Deux-Églises has a line course for practising cave skills without an overhead.
Don't miss
- Carrière de Rhisnes: a flooded underground quarry near Namur, popular with cave divers too, where a covered section next to the regular diving area can also be dived with a cavern certification.
- Carrière de Bauche (Saint-Laurent): a former underground quarry, now flooded, run by the SCAN caving club and open for leisure dives only.
- Trou du Diable (Anhée): one of the five sites in the UBS rules, with permanent lines and sediment you leave alone; the UBS warns that the ceiling tends to shed sizeable pieces of rock.
On a rest day
- Caves of Han: A vintage tram takes you from Han-sur-Lesse to the entrance, and a guided walk leads through the caves to where the Lesse comes back out.
- Citadel of Dinant: A cable car runs from the Grand-Place up to the citadel, with a weapons museum and views of the Meuse from the ramparts.
- Cave of Remouchamps: In Aywaille you ride a boat on the Rubicon, the underground river of this show cave, staying dry this time.
All 9 sites
4 closed not shown ·
| Site | Max depth | Type | Certification |
|---|---|---|---|
| Carrière de Bauche (Saint-Laurent)Permission neededBackmount · Full cave | – | Backmount | Full cave |
| Carrière de RhisnesEntry or dive feeBackmount · Cavern | – | Backmount | Cavern |
| Carrière de Warnant (cross)Permission neededBackmount · Full cave | – | Backmount | Full cave |
| Carrière de Warnant (prairie)Permission neededBackmount · Full cave | – | Backmount | Full cave |
| Trou du Diable (Anhée)Permission neededBackmount · Full cave | – | Backmount | Full cave |
Certification requirements, configurations and trimix depths are estimates for planning. Always check them locally and dive within your training.
Map
Dive centres and fill stations
4 dive centres, fill stations and instructors
Dive centre
Nérée Diving (Namur)
Rue Père Cambier 17, 5000 Salzinnes (Namur)
- Air, nitrox, O₂, trimix
- CCR
Fill station
Carrière de Villers-Deux-Églises (V2E)
Rue des Traigneaux 104A, 5630 Cerfontaine
- Air and nitrox
Fill station
Dive Factory (Braine-l'Alleud)
Chaussée de Tubize 475, 1420 Braine-l'Alleud
- Air, nitrox, trimix, O₂, helium
Dive centre
Red Shark Diving (Welkenraedt)
Boulevard Hector Grosjean 52A, 4840 Welkenraedt
- Cavern, Sidemount, Trimix · TDI
Order: partners first, clearly marked as partner; then dive centres by distance from Dinant and independent instructors by name. Not a recommendation: check what they offer yourself.
On this list, or should you be? Get a free partner card →Where to stay
Find a place near Dinant, Yvoir, Namur, Rhisnes (La Bruyère), Rochefort, Remouchamps (Aywaille)
Villages that work well as a base for the caves in this region. Find a place for your team:
- DinantBooking.com ↗
- YvoirBooking.com ↗
- NamurBooking.com ↗
- Rhisnes (La Bruyère)Booking.com ↗
- RochefortBooking.com ↗
- Remouchamps (Aywaille)Booking.com ↗
The links to Booking.com are affiliate links: if you book through one, DiveTripPlanner earns a small commission. You pay the same.
Practical info: rules, fills and emergency numbers
Emergencies
- 112. Accident in a cave or quarry: Protection Civile +32 4 257 66 00, say 'Accident Spéléo' (Spéléo-Secours). Diving accident: DAN hotline Belgium 0800 12 382 (free, 24/7); DAN Europe +39 06 4211 5685.
- Hyperbaric chambers: Queen Astrid Military Hospital, Hyperbaric Oxygen Therapy Centre, Rue Bruyn 1, 1120 Neder-over-Heembeek (Brussels), +32 2 443 18 82 (~1 h 15 from Dinant, ~45 min from Rhisnes). CHU Charleroi-Chimay, Hôpital André Vésale, Rue de Gozée 706, 6110 Montigny-le-Tilleul, +32 71 92 09 25 (~45 min from Dinant); sessions Mon–Fri at 8:00 and 13:00, adjusted in emergencies. Neither confirms 24/7 reception: call 112 or DAN first.
Access and rules
- UBS sites: Bauche, Trou du Diable (Anhée), Warnant 1 and 2, and Denée (where the UBS currently advises against diving). Only for UBS members and their guests, or members of an organisation authorised by the UBS; commercial activity, courses and drills are banned.
- Keys and booking: keys via your club president (clubs with at least 5 divers), a commission member or the UBS office (Maison de la Spéléologie, Avenue Arthur Procès 5, 5000 Namur, +32 81 23 00 09), by reservation. Book Bauche through the SCAN caving club, at least 2 weeks ahead, max. 4 divers.
- Foreign divers with the UBS: no certification required, but you dive under a club member's wing. A UBS club can insure you as a guest: €6 a day, max. 3 days a year, activities in Belgium only.
- Flemish route: the Flemish federation VVS has its own cave-diving working group (Werkgroep Grotduiken, WGD), which dives at Denée among other sites and issues its own cave keys (speleovvs.be). Terms for non-members and foreign divers: ask the VVS.
- Rhisnes: not a UBS site but the quarry of the dive club Centre de Plongée de Rhisnes, Rue de Liesse 20, 5080 Rhisnes, +32 475 72 86 32 (cp-rhisnes.be). Open Wed 18:00–24:00, Sat 14:00–20:00 and Sun 10:00–20:00. Fees and whether guest divers without membership are welcome: ask.
- Caves: in Wallonia some 60 caves hold CSIS status (Walloon government decree of 26 January 1995); access is set by management committees of authorities, owner, scientists, cavers and the CWEPSS. The classic sumps (Remouchamps, Éprave, the Lesse at Han) were explored by Belgian cave divers; there is no free access for visiting divers anywhere.
Gas and fills
- Gas: Nérée Diving in Namur (Rue Père Cambier 17, 5000 Salzinnes) fills air, nitrox, O₂ and trimix (200 and 300 bar), the closest trimix option. Dive Factory (Braine-l'Alleud, ~1 h) has the full range, including helium. Closer but without trimix: Villers-Deux-Églises (air and nitrox up to 300 bar).
Water and season
- Water temperature: no figures are known for the UBS quarries or Rhisnes; expect cold water at depth and in winter.
Safety
- Mandatory kit (UBS): independent cylinders, helmet, primary light plus two backups, redundant buoyancy, reel, compass, cutting tool and redundant deco instruments; with a CCR at least one bailout with a backup inflator and SPG.
Rest day
- Non-diving day: 'Au Cœur de l'Ardoise' in Bertrix (dry slate mine, guided tour of ~1 h, 11°C); the Grotte de Remouchamps with a boat trip on the Rubicon; the Caves of Han.
Good to know
- Open quarries nearby: Rochefontaine (to -52 m), Villers-Deux-Églises (to -28 m, with a line course for practising cave skills), Carrière du Flato at Floreffe (to -14 m), La Croisette at Vodecée (to ~-30 m) and La Gombe (to -30 m). No overhead, so not listed as sites, but handy for a regular dive in between.
News
No recent news found about the caves in this region.
Searched automatically, last on 13 Nov 2026.
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