Étang de Thau (Sète approach)
Thau lagoon · Bassin de Thau
43°23.5'N 003°38.6'E
Depth
3–6m
Bottom
mud
Alarm Radius
90m
Holding
Excellent Holding
Recommended Anchor Alarm Radius
90m
90m on mud/sand. Outstanding all-round shelter. Excellent holding. Stay clear of oyster farm buoys.
About This Anchorage
The Étang de Thau is the largest coastal lagoon in France — 20km long, protected from the Gulf of Lion by a narrow strip of sand, and home to France's most famous oyster and mussel farming industry (the Bouzigues oysters are celebrated throughout France). The lagoon offers outstanding shelter from the Tramontane and excellent holding. Sète, at the E end, is the gateway to the Canal du Midi (Atlantic passage) and one of the most authentic fishing ports on the Languedoc coast. The lagoon towns (Mèze, Marseillan, Bouzigues) are worth exploring by dinghy.
Protected From
N · NW · NE · E · W · S
Exposed To
None (fully sheltered)
Anchoring Rules
- Anchoring fee
- Free
- Permit required
- No
Restrictions: Oyster and mussel farm exclusion zones (marked by yellow buoys) — do not anchor in or near farm structures. Speed limit 12kt in the lagoon. Canal du Midi entry at Marseillan Port requires VHF notification.
Hazards
- !Oyster farm exclusion zones — marked by yellow buoys; anchoring in or near farm structures causes serious damage
- !Shallow entry channel from the sea — check tide and SHOM charts for Sète entry
Skipper's Tips
- →Bouzigues oysters: buy directly from the farm pontoons on the N shore of the lagoon — the freshest oysters you will ever eat.
- →Canal du Midi entry at Marseillan — the most beautiful inland waterway in Europe. Worth a digression if time allows.
- →Sète fish market (Criée de Sète) opens at 06:00 — remarkable early morning experience.
Facilities
Sète has excellent seafood restaurants — famous for tielles (octopus pies) and fresh Mediterranean fish.
Nearest provisions: Sète (2nm)
Best Months & Season
April, May, June, September, October, November
Year-round capable — excellent shelter. Spring and autumn ideal. Summer: Tramontane monitoring essential.
Recommended Anchor Types
Nearby Anchorages
Set Your Anchor Alarm to 90m
When the Tramontane builds to 40 kt overnight, Safety Anchor Alarm alerts you the moment your boat drifts — giving you time to act before the situation becomes dangerous.
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