Creux Bleu
Cave diving in Burgundy · about 22 km from Dijon
- Max depth
- 10 m
- Type
- Small cylinders / no-mount
- Certification (estimate)
- Full cave
- DPV
- Not DPV-suitable
Blue spring (the colour comes from microscopic algae) and outlet of the Combe aux Prêtres system near Francheville, according to the tourist board the largest underground network in Burgundy.
More about Creux Bleu
Signed-in divers also see:
- Whether this site fits everyone's certification, gas and gear
- Access, parking and the route from the road
- Exact map pin and navigation
- Depth profile and sumps
- Configuration advice
- DPV suitability
- Driving times from your stay and a plan with the AI instructor
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Current conditions
Visibility, flow and water levels change quickly. Right before your dive, check what other divers report:
- Spéléo-Club de Dijon ↗
Club blog with short dive reports from the region (Douix, Trou de Jalleu, Creux Bleu).
- CDS 21 – Comité départemental de spéléologie de Côte-d'Or ↗
Côte-d'Or caving committee: news on caves and projects, board minutes (including on the Douix and the Fosse Dionne).
- FFS – École Française de Plongée Souterraine ↗
Cave-diving school of the French caving federation: course calendar, regional correspondents, accident reporting.
- FFESSM – Commission nationale plongée souterraine ↗
Cave-diving commission of the French diving federation: training, regional commissions, reports.
- Spéléo-Club de Chablis – plongée souterraine ↗
Caving club from the Yonne; background on the Yonne sumps (Fosse Dionne, Druyes, Arcy-sur-Cure).
- wannadive – Bourgogne ↗
Dive-site database; lists the Douix with GPS and depth.
Plan a cave diving trip to Burgundy
Enter your team, with certifications, gas and configurations, and see right away which caves fit. With driving times from your stay, fill stations and an AI instructor who thinks along.
Certification requirements, configurations and trimix depths are estimates for planning. Always check them locally and dive within your training. Compiled from public sources: wannadive, COSIF/FFS Île-de-France, CDS 21, Spéléo-Club de Dijon, Spéléo Club Alpin de Gap, Spéléo-Club de Chablis, plongeesout.com, Bourgogne-Nature, CNRS, Wikipedia, the Burgundy tourism board, komoot, Chemins de l'eau, MedSubHyp, Aquasub and the town of Châtillon-sur-Seine (September 2026). Much of the dive data is old (2009–2012) or comes from a single club report. Pins from wannadive, Wikipedia, plongeesout.com and one converted Lambert coordinate. ~ = estimate. Rules change — check locally.