Best Anchorages in Gironde & Charente-Maritime
Wine country sailing on the French Atlantic — the Arcachon Basin (Europe's largest tidal lagoon), the mighty Gironde estuary, Île d'Oléron, and the Charente river to Rochefort's Royal Arsenal. These 10 anchorages cover 4–5m tidal range, oyster farm navigation, and anchor alarm radius.
5m
Max spring tidal range
155km²
Arcachon Basin area
75km
Gironde estuary length
SHOM
Chart 7426 mandatory
Critical Warning — Arcachon Entrance Bar, Oyster Farms & Channel Navigation
Arcachon entrance bar (Passe Sud): breaking seas in W swell — many accidents reported. Enter ONLY in calm swell at half-tide rising. Confirm Bay of Biscay swell forecast before approach. Inside the basin, navigation is ONLY in marked buoyed channels — vast areas outside dry at LW. Straying off channel risks grounding. Oyster stakes pierce hulls — Arcachon and Charente-Maritime are France's largest oyster production regions. Never anchor near oyster farms. Buy SHOM chart 7426 (Arcachon) before entering the basin.
Tidal Range 4–5m, Gironde Commercial Shipping & Bay of Biscay Orca Risk
Tidal range 4–5m throughout the region — calculate depth at LW before anchoring in every location. The Gironde is the largest estuary in Western Europe: commercial shipping traffic on the main channel (keep clear; VHF Ch 12 Bordeaux Port). Ebb current 2–3kt throughout the estuary. Bay of Biscay orca interactions are reported on offshore passages — monitor orcas.pt/GTOA before any passage offshore.
10 Verified Anchorages
Arcachon Basin — Île aux Oiseaux
(Bird Island)Excellent HoldingÎle aux Oiseaux ('Bird Island') sits in the heart of the Arcachon Basin — Europe's largest tidal lagoon (155km²) — and is one of the most extraordinary anchorages on the Atlantic coast of France.
Depth
1–4m
Bottom
mud
Alarm Radius
60m
Crowds
Busy
Full anchoring guide →
Arcachon Basin — Banc d'Arguin
(Banc d'Arguin)Good HoldingThe Banc d'Arguin is a large protected sandbank at the entrance to the Arcachon Basin, classified as a Réserve Naturelle Nationale and one of the most important seabird and wader nesting sites on France's Atlantic coast.
Depth
2–5m
Bottom
sand
Alarm Radius
70m
Crowds
Quiet
Full anchoring guide →
Cap Ferret — Basin Entrance Anchorage
(Cap Ferret spit)Good HoldingCap Ferret is the long sandy spit that forms the ocean entrance to the Arcachon Basin — a narrow finger of sand between the Atlantic and the inner basin.
Depth
2–6m
Bottom
sand
Alarm Radius
70m
Crowds
Busy
Full anchoring guide →
Arcachon Town Anchorage
(Arcachon basin anchorage)Excellent HoldingThe Arcachon town anchorage on the S shore of the Arcachon Basin is the most convenient base for exploring the basin and the town.
Depth
2–5m
Bottom
mud
Alarm Radius
65m
Crowds
Busy
Full anchoring guide →
Gironde — Talmont-sur-Gironde
(Talmont)Good HoldingTalmont-sur-Gironde is one of the most beautiful villages in France — a medieval bastide built in the 13th century on a dramatic limestone promontory jutting into the Gironde estuary, crowned by the 12th-century Romanesque church of Sainte-Radegonde.
Depth
4–9m
Bottom
sand
Alarm Radius
80m
Crowds
Quiet
Full anchoring guide →
Gironde — Île Nouvelle
(Île Nouvelle)Good HoldingÎle Nouvelle is an uninhabited nature reserve island sitting in the mid-Gironde estuary, surrounded by the famous Bordeaux wine country — Château Margaux, Château Lafite Rothschild, and St-Émilion are all within 20km.
Depth
3–7m
Bottom
sand
Alarm Radius
75m
Crowds
Quiet
Full anchoring guide →
Gironde — Mortagne-sur-Gironde
(Mortagne)Excellent HoldingMortagne-sur-Gironde is a quiet village on the S bank of the Gironde estuary, set among the limestone hills and vineyards of the Charente-Maritime.
Depth
3–7m
Bottom
mud
Alarm Radius
75m
Crowds
Quiet
Full anchoring guide →
Royan — Gironde Entrance Staging Anchorage
(Royan roads)Good HoldingRoyan is the gateway to the Gironde estuary — the N entrance point to the largest estuary in Western Europe.
Depth
4–10m
Bottom
sand
Alarm Radius
90m
Crowds
Moderate
Full anchoring guide →
Île d'Oléron — La Cotinière (W Coast)
(La Cotinière)Excellent HoldingLa Cotinière is one of the most authentic working fishing villages on the French Atlantic coast — on the exposed W coast of Île d'Oléron, France's second-largest island.
Depth
3–8m
Bottom
sand
Alarm Radius
80m
Crowds
Quiet
Full anchoring guide →
Charente River — Rochefort Approaches (below Soubise)
(Rivière Charente)Excellent HoldingThe Charente River below Soubise is the gateway to one of France's most extraordinary maritime destinations: the Rochefort Arsenal.
Depth
2–6m
Bottom
mud
Alarm Radius
60m
Crowds
Quiet
Full anchoring guide →
Gironde & Charente-Maritime Anchoring Rules — Summary
- !Arcachon entrance bar (Passe Sud): breaking seas in any W swell — only enter in calm swell at half-tide rising. Confirm Atlantic swell forecast before approach.
- !Oyster farms: stakes pierce hulls — Arcachon and Charente-Maritime are France's oyster capital. Never anchor near farms. SHOM chart 7426 shows all farm exclusion zones.
- !Arcachon Basin channels: navigate ONLY in buoyed channels — vast areas outside the channels dry at LW. Do not leave the channel at any state of tide.
- !Tidal range 4–5m: calculate depth at LW for every anchorage — some locations dry or shoal significantly. Tide tables are essential.
- !Gironde commercial shipping: the Gironde carries tankers and cargo vessels to Bordeaux — maintain strict clearance from the main channel; monitor VHF Ch 12 Bordeaux Port.
- !Bay of Biscay orca risk: orca interactions reported on offshore passages — monitor orcas.pt/GTOA before any passage more than 10nm offshore.
- iNo DONIA app required: Atlantic coast — no Posidonia seagrass. DONIA app is only required on the French Mediterranean coast.
Anchor Alarm is Essential in 4–5m Tidal Waters
As the tide falls 4–5m overnight in the Arcachon Basin and Gironde, your swinging radius changes and the current increases. Safety Anchor Alarm watches your position continuously — critical where tidal current and oyster stakes make dragging dangerous.
Download Free for iOS