Harbour

Marennes

3.5Marennes, FranceCharente-Maritime
Maximum length
45 ft
VHF channel
9
Maximum draught
5 ft

Tidal lock marina of 160 berths in Marennes, on the Seudre estuary in Charente-Maritime.

Guide

Approach and anchoring

Approach via the Seudre channel between Marennes and the Île d'Oléron. Access through a lock, typically open around high water. Max draught 1.8 m. VHF channel 9 for the harbourmaster.

Practical

160 berths in a wet basin. Water and electricity on the pontoons. There is no fuel at the port. Shops, a bakery and a Leclerc supermarket lie in Marennes within 800 m.

Ashore

Marennes is the capital of the Marennes-Oléron oyster basin, first AOC oyster in France since 2009. Cité de l'Huître visitor centre at 1.5 km. Église Saint-Pierre-de-Sales with a 78 m Gothic bell tower used as a seamark, at 700 m. The restaurant le Cayenne, on the Chenal de la Cayenne on the way up to the port, sells seafood platters to take away.

Key facts

Type
Harbour
Coordinates
45.81937, -1.11117 (45°49.16'N 1°6.67'W)
Town
Marennes
Country
France
Maximum draught
5 ft
Maximum length
45 ft
VHF channel
9
Boaters' rating
3.5/5
Updated
October 15, 2026

Getting there

Marennes lies at 45°49.16'N 1°6.67'W, that is 45.81937, -1.11117 in decimal degrees. Call the harbour on VHF channel 9 before entering.

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Frequently asked questions

What boat length does Marennes accept?

Marennes accepts boats up to 45 ft.

Which VHF channel for Marennes?

Marennes answers on VHF channel 9.

How do boaters rate Marennes?

Marennes is rated 3.5/5 by boaters on BoatMap.

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