mslc.fr · Club Log
Local club log with a drift from la Grotte du CNRS, red coral, octopus, and safety support.
Dive Spot Guideâą
la Grotte du CNRS
Boat-access Marseille cave with coral, lobsters, and eels.
Scuba DivingBoatAdvanced
Cave
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Local operator required
Boat access and the overhead entrance make a local operator the practical way to dive it.
Boat dive from Marseille into a large overhead cave with walls, cavities, and a technical profile that suits calm days and disciplined buoyancy.
About la Grotte du CNRS
la Grotte du CNRS is a boat-access cave dive off Marseille that opens into a broad overhead entrance and a network of walls, cavities, and enclosed passages. The site is known for colorful sponges, anemones, red coral, lobsters, moray eels, and octopus, with a profile that rewards calm-day planning and careful buoyancy.
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Research Estimate At la Grotte du CNRS
Conservative baseline from public research. No community dives logged yet.
VisibilityVisibility: 15m
AccessChallenging entry effort
CoralHealthy coral
Aquatic LifeGreat variety
FacilitiesGood facilities
Crowd / PopularityFew visitors
CurrentModerate current
Where Is la Grotte du CNRS?
This spotNearby spots
Community sourced coordinates.
la Grotte du CNRS Planning Details
Depth range, seasonality, and planning context.
Reported Depth
20m - 25m
Depth Note
Entrance depth reported between 20 and 25 m.
Best Season
Year-round, with calm-weather windows preferred.
Typical Conditions
Overhead cave with a deep entrance, variable visibility, and a calm-day preference; more technical than an open wall.
Safety & Access At la Grotte du CNRS
Hazards, restrictions, and access requirements.
Key Hazards
Overhead environment
Safety Notes
This is an overhead cave environment; plan gas and navigation accordingly and use appropriate cave-diving procedures and equipment.
Access Restrictions
Overhead cave diving only, with appropriate training and operator support.
Local Intel For la Grotte du CNRS
Community notes to help plan your visit.
Scuba Diving
Advanced scuba site with an overhead cave entrance and wall/cavity exploration.
la Grotte du CNRS Dive Conditions Planner
Use the planner to scan this week, inspect today in local time, and understand how exposure shapes conditions at la Grotte du CNRS.
Current Snapshot
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Sunset
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Surface / Entry
Wind No data · Tide No data
Sea State
Swell No data · Period unavailable
Visibility Outlook
Rain chance No data
Wind
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Swell
No data
Exposure Profile at la Grotte du CNRS
Directional shelter context for incoming swell.
Exposure Note
Hourly forecast data is not available yet.
Recent Logged Visits At la Grotte du CNRS
Community dive logs and visit reports for this site.
No Dive Logs Yet
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Dive Spot Log Averages At la Grotte du CNRS
Average conditions based on logged dives & visits.
Conditions
Avg. Visibility15m
Activity
No dive activity logged yet.
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la Grotte du CNRS Guide - Frequently Asked Questions
Planning answers for access, conditions, timing, and site logistics.
la Grotte du CNRS Guide - Sources and Updates
Last Updated
Research Sources
www.cursosdebuceo.com · Operator
CIP Marseille center page with boat diving, facilities, and year-round season.
www.dirm.mediterranee.developpement-durable.gouv.fr · Official Report
Official Mediterranean diving inventory listing la Grotte du CNRS as a level-2 natural site with low usage.
www.zesea.com · Dive Directory
Independent Marseille dive guide describing la Grotte du CNRS as a large cave with a coralline wall.
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