Burgundy · about 2 km from Champlitte
Trou de Jalleu
- Max depth41 m
- CertificationFull cave
- Water temperature≈ 11–12 °Cestimated, no reports yet
- SpecialSidemount
Diving and fills
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Fills nearby
- Fill stationAquasub (Ahuy, Dijon)Fills dive cylinders; which gases (nitrox, trimix, O₂) and up to what pressure is not published — ask.Route ↗
The dive
A resurgence under a meadow near Champlitte. Between the sumps there are small air bells and an underground river of ~150 m (2–4 m wide, walls 2–10 m high).
Profile and sections
A resurgence under a meadow near Champlitte. Between the sumps there are small air bells and an underground river of ~150 m (2–4 m wide, walls 2–10 m high). Visibility is fair at normal flow and poor at low water (stagnant water); the floor is sand and clay, with muddy gours near S6. Water temperature is not published.
The resurgence has been explored since 1976. In 2007 a team got past the bedding crawl at -32 m; seven sumps followed up to 2011. The Spéléo-Club de Dijon dived it in June 2020.
- Depth and profile
- S1 472 m / -41 · S2 6 m / -2 · S3 41 m / -16 · S4 225 m / -13 · S5 66 m / -4 · S6 23 m / -2 · S6bis 150 m / -11 · ~1,226 m development (1,114 m surveyed, ~926 m of it underwater).
- Configuration
- Tight: a narrow fissure shaft (1.5 × 5 m) to ~-25 m, a ~15 m boulder-floored bedding crawl, restrictions at -25 and -27 m, a very low passage (-29 to -32 m) and restrictions at the S1 exit and halfway along S4. Sidemount fits best; backmount and CCR are tight (estimate).
- DPV: Not DPV-suitable (estimate)
- Restrictions and dry sections between the sumps: no scooter.
Who can dive where
- At least Full cave
- Configurations: Backmount / twinset / Sidemount / CCR / Small cylinders / no-mount (speleo sumps)
- Goes down to 41 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
Private land (farmed meadow): ask the owner for permission beforehand; get the contact details from clubs that dive here. Park just past the pond on the stony flat (cars get bogged further on) and carry your kit ~300 m in single file across the meadow, to limit damage to the grass. Entry into a pool of ~10 m across.
Around Trou de Jalleu
Fills1 fill station · 51 km
Aquasub (Ahuy, Dijon)
7 rue de l'Aqueduc Darcy, 21121 Ahuy
Fills dive cylinders; which gases (nitrox, trimix, O₂) and up to what pressure is not published — ask.
Tue–Fri 10:00–12:00 and 14:00–19:00, Sat 10:00–12:00 and 14:00–18:30; Monday by appointment; closed Sunday.
Dive shop on the northern edge of Dijon with rental and a workshop (regulator servicing, cylinder testing). Walk-in fills for visitors and CCR absorbent: ask.
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