La Rochelle's medieval harbor towers and old port can be explored on foot, then cross the iconic bridge to the Île de Ré—a flat Atlantic island of oyster farms, salt marshes, cycling paths, and the charming village of Ars-en-Ré with its distinctive black-and-white church spire.
La Rochelle and the Île de Ré together form one of the Atlantic coast's most rewarding day trips from Bordeaux—a 180-kilometre journey north through the Charente-Maritime that combines a fortified medieval port city with a flat, wind-swept Atlantic island of cycling paths, salt marshes, and oyster farms. The direct train from Bordeaux to La Rochelle takes approximately 2 hours and costs from €15 return.
La Rochelle's old port is framed by three medieval towers—the Tour Saint-Nicolas, Tour de la Chaîne, and Tour de la Lanterne—that guarded the harbor entrance from the 14th century onward. The towers are connected by an ancient chain that was drawn across the harbor mouth to prevent enemy ships from entering. The Tour de la Lanterne served as a lighthouse and later a prison, its interior walls covered in engravings left by captive sailors and pirates over three centuries. The Vieux-Port arcaded streets are animated throughout the day with seafood restaurants, fish vendors at the quay, and the covered market on the Place du Marché. The Aquarium de La Rochelle, one of France's largest, occupies the waterfront north of the old port and is a strong option for families.
The Île de Ré is connected to La Rochelle by a 3-kilometre toll bridge (€3 for cyclists, €16-19 for cars in peak season) and is most enjoyably explored by bicycle. The island is flat and comprehensively equipped with dedicated cycling paths extending over 100 kilometres, making it accessible for virtually all fitness levels. The main town of Saint-Martin-de-Ré is a well-preserved Vauban-fortified town with flower-lined lanes, oyster restaurants, and a working fishing port. The smaller village of Ars-en-Ré, at the narrowest point of the island, is known for its distinctive black-and-white church spire visible from several kilometres. Salt marshes in the north of the island still produce Fleur de Sel harvested by hand each summer.
Bicycle rental is available at multiple points on the island (approximately €10-15 for a half-day); the La Rochelle harbor also has rental stations. Returning to La Rochelle by mid-afternoon allows a seafood dinner at the old port before the evening train south.
Highlights
- La Rochelle medieval towers
- Île de Ré cycling
- Ars-en-Ré village
- Atlantic oyster tasting
Tips for visiting
- Take the direct train from Bordeaux Saint-Jean to La Rochelle (2 hours, from €15) and rent a bicycle on arrival or from the island.
- The Île de Ré bridge charges a toll for cars (€16-19 in peak season); cyclists cross for around €3. Arriving by bike avoids the car queue.
- Buy an oyster and a glass of Muscadet at the Saint-Martin-de-Ré port waterfront—the combination is a Ré island institution.
- Pre-book the Torre Saint-Nicolas, Tour de la Chaîne, and Tour de la Lanterne combined ticket online to skip queues at the old port.
- The island cycling path from Saint-Martin to Ars-en-Ré and back is approximately 25 kilometres and takes 2-3 hours at an easy pace.
- July and August are extremely popular on the island; May, June, and September offer comparable weather with notably shorter queues.
When to visit
May through September for cycling and beach conditions; early June and September strike the ideal balance between warm weather and manageable visitor numbers. The island is windswept and quieter from October to April, but the salt marshes and bird life are excellent in winter. July and August see the island at its most crowded.
Accessibility
La Rochelle's old port and main arcaded streets are largely flat and accessible. The medieval tower interiors involve spiral staircases and are not suitable for wheelchair users. The Île de Ré cycling paths are flat and well-surfaced; three-wheeled and adapted cycles are available from some rental outlets on the island.
Frequently asked questions
Can the Île de Ré be reached without a car from La Rochelle?
Yes—the seasonal bus service (line 3) crosses the bridge from La Rochelle bus station to Saint-Martin-de-Ré and other island villages. Bicycle rental is widely available in La Rochelle and on the island itself, and cycling across the bridge is a popular and practical option.
How much time should be allocated to the Île de Ré?
Three to four hours by bicycle allows a comfortable circuit from Saint-Martin-de-Ré to Ars-en-Ré, taking in the salt marshes and oyster beds. A full day on the island combined with a morning in La Rochelle makes the most of the trip.
Are the La Rochelle medieval towers worth visiting?
The three towers at the Vieux-Port are among the best-preserved 14th-century harbor defenses in France and are the defining landmarks of the city. The Tour de la Lanterne's prisoner engravings are particularly remarkable. A combined ticket covers all three towers and takes around 2 hours.
Where are the best oysters on the Île de Ré?
The oyster ports of La Couarde-sur-Mer and Loix on the northern coast, and the quayside restaurants in Saint-Martin-de-Ré, are the primary locations for fresh island oysters. Most establishments offer platters with local Muscadet or Pineau des Charentes at the waterside.