
Palavas-les-Flots, Carnon & Villeneuve-lès-Maguelone · France · Reef
Les 3 Arches
A 4-6 m bank 400 m off the beach, used for first dives
Area photo: Julien Renoult · CC BY 4.0
The first rocky bank off the beach between Palavas and Carnon, 400 m from shore and only 4 to 6 m deep: a strip of layered rock about 300 m long, eroded into cavities and overhangs, with a small ledge at its northern end. Plongée Carnon uses it for baptism dives, children's courses and first Niveau 1 dives, and the shallow water keeps it bright.
Where it is and how deep
43.5357° N, 3.9643° EApproximate position — the dashed circle shows where the site lies; your operator's briefing has the mooring.
The dive
The site is the northern, shallow end of a rocky bank about 300 m long, lying 400 m off the beach between Palavas and Carnon. You drop onto a small ledge that rises to about 4 m, with the bottom around it at 6 m. There is no depth to manage and a lot of light, which is why baptism dives and children's courses run here rather than anywhere else on this coast.
The route is simply to follow the break at the edge of the plateau. The rock is layered and erodes unevenly, so the face of the ledge is full of small cavities and overhangs worth looking into: keep an eye on the faults and a small octopus will often be looking back. Corb, common sar and gilt-head bream work the rock, and red mullet forage in groups on the sand at its foot. In summer the water can reach 26 °C.
Marine life and season
- Octopus & cuttlefish
- Macro critters
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Fair | Fair | Fair | Fair | Good | Prime | Prime | Prime | Prime | Good | Fair | Fair |
Season follows Palavas-les-Flots, Carnon & Villeneuve-lès-Maguelone: Clubs dive year-round, but logged visibility sits near 2 m and the sea at 10-12 °C from January to March; one club runs seven days a week in July and August.
Questions divers ask
Is Les 3 Arches good for a first dive?+
Yes. Plongée Carnon lists it as all levels and specially for beginners, and uses it for baptism dives, children's courses and first Niveau 1 dives at 4 to 6 m.
Sources
- Plongée aux 3 Arches — Plongée Carnon
- Les 3 Arches — Octopus Plongée
- Les 3 Arches, dive site — Scubago/SSI
More dive sites in Palavas-les-Flots, Carnon & Villeneuve-lès-Maguelone
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A wide scree field at 8-14 m for slow hunting
Wreck
A hollow 12 m cistern alone on the sand at 11 m
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Fields of white gorgonians on a bank closed to fishing
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An offshore sec in the current, 25 m up to 19 m
A plateau of faults and posidonia beside a white-sand valley
Caves and faults on a 6-9 m plateau
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Big overhangs and a dolmen block on an offshore bank
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A 60 m rock at 6-10 m, full of holes
Similar dives elsewhere
A sheltered 7 m dive beside the Deux Frères rocks
Shallow slabs at 7 m, a site for navigation practice
Black volcanic rock in 3–11 m, with octopus through the holes
Seahorses, cuttlefish and rays in the sand and posidonia at 12 m


