Club instructions, booking process, and safety rules for the pit.
Conflans training pit with controlled depth progression.
Conflans training pit with controlled depth progression.
Fosse de Conflans Saint Honorine is a controlled training pit near Conflans-Sainte-Honorine with fixed depth platforms, a laddered entry, and a deeper well for progression work. It is built for buoyancy, verticality, and skill practice in warm, still water, so the site is best used as a purpose-built training environment rather than a natural scenery dive.
Conservative baseline from public research. No community dives logged yet.
Depth range, seasonality, and planning context.
Reported Depth
1.3m - 20m
Depth Note
Cylindrical pit with a step at 1.30 m, platforms at 5 m and 10 m, and a well reaching 20 m.
Best Season
Year-round; use is driven by facility bookings and club schedules rather than weather seasonality.
Typical Conditions
Warm, still water with fixed platforms, a laddered exit, and a repeatable training profile.
Site conditions, restrictions, and access requirements.
Site Conditions
Safety Notes
Follow the briefing, respect the platform depths, and treat the deeper section as a controlled training space rather than an open-water dive.
Access Restrictions
Confirmed-session access only; minimum level 1/PE20 or equivalent preparation is expected for pit sessions.
Legal Notes
Participants need to follow the centre's booking and safety rules, with confirmation before attendance and parental authorization required for some minors' sessions.
Community notes to help plan your visit.
Scuba Diving
Structured depths (1.30 m step, 5 m and 10 m platforms, 20 m well) support staged practice and training dives.
Freediving
Useful for apnée drills and verticality work in a controlled environment with fixed reference depths.
Snorkeling
Only makes sense as a supervised training activity; the pit is not a casual snorkel destination.
Community dive logs and visit reports for this site.
Average conditions based on logged dives & visits.
Planning answers for access, conditions, timing, and site logistics.
Last Updated
Research Sources
Club instructions, booking process, and safety rules for the pit.
Official centre page for the 20m pit, address, and activity overview.
Independent basin listing with access, parking, shuttle, and depth summary.
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