Ferry companies to the Îles du Ponant

Bateaux-Bus du Golfe operates the regular link to Île d'Arz from Vannes (30 min) and Séné-Barrarac'h (15 min), 365 days a year, under delegation from the Brittany Region.

Compagnie Corsaire serves the Chausey Islands from Saint-Malo and offers guided cruises in Saint-Malo bay and along the Emerald Coast.

Compagnie du Golfe provides crossings to the Gulf of Morbihan islands (Arz, Île aux Moines) and offers panoramic gulf cruises.

Compagnie Interîles offers cruises with a stopover on Île d'Aix from La Rochelle and neighbouring islands, sailing past Fort Boyard, from April to November.

The leading maritime company in Morbihan, Compagnie Océane serves Belle-Île, Groix, Houat and Hoëdic from Quiberon and Lorient with 1.4 million passengers per year.

Compagnie Vendéenne connects Île d'Yeu to the mainland from April to November from three ports: Fromentine, Saint-Gilles-Croix-de-Vie and Barbâtre, in 45 to 60 minutes.

Escal'Ouest links Lorient and Port-Louis to Île de Groix in about 40 minutes, from April to September, complementing the regular BreizhGo line.

In season, Finist'Mer serves the three Iroise Sea islands — Ouessant, Molène and Sein — from Le Conquet, Lanildut, Camaret-sur-Mer and Audierne-Esquibien.

Glénan Découverte reaches the Glénan archipelago in 30 minutes from Pointe de Trévignon, aboard a 12-seat RIB, with a 3-hour stopover on Saint-Nicolas.

Izenah Croisières provides shuttles to Île d'Arz and Île aux Moines and offers guided cruises in the Gulf of Morbihan.

Le Passeur des Îles links the Rhuys peninsula to the Gulf islands: Île aux Moines from Kerners (30 min) and Île d'Arz from Port-Navalo, April to September.

The Fouras-Aix maritime link, operated for the Charente-Maritime department, runs the ferry between Fouras and Île d'Aix (about 25 min) year-round, facing Fort Boyard.

Navix offers shuttles to the Gulf of Morbihan islands and excursions to Belle-Île, Houat and Hoëdic from Vannes and Port-Navalo.

Breton maritime company serving the Finistère islands — Ouessant, Molène and Sein — from Brest, Le Conquet and Audierne, year-round.

Sailcoop offers a sailing shuttle from Concarneau to Les Glénan aboard an 80-seat sailboat, with a 2 to 4-hour stopover on Saint-Nicolas. The low-carbon crossing.

Sur Mer Bréhat operates the Arcouest–Bréhat crossing in about ten minutes from April to September, carrying bicycles, with optional island tours.

Vedettes de Bréhat provide fast crossings (10 minutes) from Pointe de l'Arcouest to Île de Bréhat, with frequent departures year-round.

Vedettes de l'Île de Batz — the merger of historic operators Armein, Armor Excursions and CFTM — runs the Roscoff–Île de Batz shuttle in 15 minutes, every day of the year.

Vedettes de l'Odet offer crossings to the Glénan archipelago and cruises on the Odet from Bénodet, Concarneau and Fouesnant.

Vedettes du Golfe links Vannes, Port-Navalo and Locmariaquer to Houat and Hoëdic in season, plus Gulf cruises with stopovers on Île aux Moines and Île d'Arz.

Vedettes Jolie France provide regular service between Granville and the Chausey Islands, the main gateway to Europe's largest archipelago.

In summer, Vedettes l'Angélus runs direct shuttles from Locmariaquer to Île aux Moines and Île d'Arz, as well as commented cruises in the Gulf of Morbihan.

Yeu Continent, run by the Vendée department, provides the year-round Fromentine–Île d'Yeu link in 30 minutes on fast catamarans; vehicles and freight travel on the dedicated cargo ship.