There is a stretch of the French Atlantic coast where the harbours sit so close together that you can sail all morning, lunch on a white sand beach, and still be tied up under a lighthouse by tea. The Pertuis Charentais, the band of sheltered water between the islands of Re, Oleron and the mainland, is the gentlest cruising ground in Biscay. A ten day Atlantic islands loop here asks little of the crew beyond a willingness to read a tide table.
I sailed this with two friends and a teenager who had never been offshore. By the end the teenager was calling the depths off the chartplotter and arguing about which island had the better ice cream. That tells you the level. The legs are short, mostly under 20 nautical miles, the holding is good sand, and La Rochelle anchors the whole thing with a marina big enough to fix anything you break.
Base camp: La Rochelle
Start and finish at Port des Minimes, one of the largest marinas in Europe and reached by a buoyed channel that is dredged but still dries towards its edges. The harbour office works VHF 09, the universal French port channel, with a 24-hour watch. Spend your first afternoon walking the old towers of the Vieux-Port and topping up the lockers, because provisioning gets thinner once you leave. A proper La Rochelle visitor guide is worth a read before you arrive, as the city rewards a slow start.
A note on the season: the Pertuis fills in August. Book ahead or anchor.
Day 1: La Rochelle to Saint-Martin-de-Re
Only about 17 nautical miles, much of it a beam reach. Saint-Martin sits behind a tidal gate, the basin held by a sill that you cross around two and a half hours either side of high water. Call ahead on VHF 09 and time it right or you will circle outside watching the gate. Inside, the boats lie below a star-shaped Vauban citadel and the whole town is a postcard. This is the headline stop on any cruise around Ile de Re by boat, so do not rush it.
Day 2: a day exploring Re by bike
Leave the boat and rent bicycles. Re is flat, laced with cycle paths, and the lighthouse at the western tip, the Phare des Baleines, is worth the ride. Oyster shacks line the marais. If the gate timing is awkward you can shift to the all-tide marina at La Flotte instead, a few miles east.
Day 3: Saint-Martin to Ile d'Aix and the anchorage
Slip out on the morning gate and sail down towards Fort Boyard, the stone fort marooned mid-channel that French television made famous. Anchor off the tiny car-free Ile d'Aix for lunch. This is open-water anchoring with a tidal stream, so set plenty of scope and check your swing. The wider Pertuis Charentais anchorages are some of the best lunch stops in Biscay.
Day 4: Down to Saint-Denis-d'Oleron
Cross the Pertuis to the northern tip of Oleron. Saint-Denis is a modern lock-gated marina, around 10 nautical miles southwest of La Rochelle, and a good all-weather bolthole. Oleron is bigger and wilder than Re, with forest, vines and long surf beaches on its western side. The marina monitors VHF 09.
Mid-trip: the open coast
Day 5: Oleron to Boyardville
A short hop down the island's eastern shore to Boyardville, a drying harbour reached through a channel with a sill, again best taken near high water on VHF 09. The village is small and the oyster trade still runs the place. This is a day to do nothing much and let the trip breathe.
Day 6: The long leg north
Here the cruise changes gear. To reach Ile d'Yeu you leave the sheltered Pertuis and sail out into open Biscay, a passage of roughly 45 nautical miles depending on your start point. Pick your weather. The Atlantic swell here is a different animal from the flat water inside the islands, so read up on Atlantic swell versus the Mediterranean if you have only sailed the Med before. Time the start for a fair tide out of the Pertuis Breton and settle in for a proper day sail.
Day 7: Port-Joinville, Ile d'Yeu
Port-Joinville is the only real harbour on Yeu, marina and fishing port side by side, capitainerie on VHF 09. The island is the jewel of the trip: a wild southern coast of granite creeks, the ruined Vieux-Chateau on a sea cliff, and beaches you reach on a hired bike. Many visitors who write up sailing Ile d'Yeu and Port-Joinville rate it the best island on the French Atlantic coast, and they are not wrong.
Day 8: A day on Yeu
Cycle the whole island in a day. Coffee in the port, lunch at Port de la Meule in its cleft of rock, an afternoon swim at the Plage des Vieilles. Refuel and re-water before the return leg, because Yeu is a long way from anywhere.
The run home
Day 9: Yeu back towards the Pertuis
Reverse the open-water leg, aiming for the northern entrance to the Pertuis. If the forecast turns, Les Sables-d'Olonne lies a comfortable distance northeast as a bolthole, and the Les Sables-d'Olonne marina is a deep, all-tide harbour that never lets you down. Otherwise carry on into the sheltered water and anchor for the night off Re or Aix.
Day 10: Back to La Rochelle
A gentle final morning, the channel buoys leading you back to Les Minimes. Hand the boat back, or if it is your own, settle into the city for a celebration dinner among the towers.
What to know before you go
The whole area dries in great sandy flats, so a tidal almanac is not optional. Saint-Martin and Boyardville both have sills, La Flotte and Saint-Denis are gated, and Port des Minimes and Les Sables are the reliable all-tide options when timing defeats you. French marina staff almost universally answer VHF 09, and a few words of boat French go a long way at the fuel berth. Holding is good sand throughout, but the streams run hard in the pertuis, so anchor with that in mind.
Costs and the practicalities of the open leg
Berthing on this coast is reasonable. A 10 to 12 metre boat pays roughly 30 to 45 euros a night in the island marinas in high season, with La Rochelle a touch dearer for the convenience. Anchoring is free where it is allowed, and the Pertuis is full of sheltered sand to drop the hook on. Fuel and water are at La Rochelle, Les Sables, Saint-Denis and Port-Joinville, but thin in the smaller gated harbours, so top up when you can rather than when you must.
The one leg that needs real thought is the open run between Oleron and Yeu. It is the only stretch where you leave shelter for several hours of exposed Biscay, and the swell can build fast on a southwesterly. I plan it for a window of light to moderate winds, leave early to carry the fair tide out of the Pertuis Breton, and have Les Sables-d'Olonne in my pocket as a bolthole if the forecast slides. Treat that single passage with the respect you would give any offshore leg and the rest of the cruise is genuinely relaxed.
When to come
July and August bring the warmest water and the busiest harbours, so book the gated marinas ahead or plan to anchor. June and September are quieter and the gates are easier to time when you are not queuing behind a dozen other boats. The water stays swimmable into October. Bring bicycles for the islands, because Re, Oleron and Yeu are all flat and laced with cycle paths, and the best of each island lies away from the harbour.
This is not a cruise that will frighten anyone. It is a cruise that teaches the gentle discipline of tides, hands you three of France's loveliest islands in ten unhurried days, and sends you home plotting the next one.
