Saint-Denis is the capital of Réunion — a French overseas region (département et région d'outre-mer) and island in the Indian Ocean, 800 km east of Madagascar, 174 km southwest of Mauritius, with a population of 890,000. Réunion is simultaneously a full department of France (French citizens, Euro currency, French public services, EU territory) and one of the most geologically dramatic islands on Earth — the island is formed by two shield volcanoes: the Piton de la Fournaise (2,632 m, one of the most active volcanoes in the world, erupting on average 2-3 times per year with accessible lava flows), and the ancient Piton des Neiges (3,070 m, the highest peak in the Indian Ocean, dormant). The island has three calderas: the Cirque de Cilaos, the Cirque de Mafate and the Cirque de Salazie — enormous collapsed volcanic craters encircled by vertical walls of 500-1,000 m, each containing a traditional creole village community isolated by the terrain (Mafate has no road access — it can only be reached on foot or by helicopter). The UNESCO World Heritage Site (Réunion National Park, 2010, covering 40% of the island including all three cirques and the Piton de la Fournaise lava fields) is the most dramatic insular landscape in the world after Hawaii's Big Island. Saint-Denis itself is a French colonial town with the finest Creole colonial architecture of any Indian Ocean island — the Barachois waterfront, the Tamil Hindu temples (the Réunionnais Hindu community is 20-25% of the population, descended from indentured labourers brought from southern India after the abolition of slavery in 1848), the museums and the Creole cuisine (the finest fusion of French, African, Indian and Chinese cooking in the Indian Ocean).
The Rue de Paris (the main colonial boulevard of Saint-Denis) and the surrounding historic district have the finest surviving Creole colonial architecture of any Indian Ocean city — the distinctive maisons créoles (Creole colonial houses with their varangues/verandas, wooden louvers, tropical garden courtyards and the distinctive Réunion tile roofs) from the sugar economy era (1760s-1950s); the Musée Léon Dierx (the finest fine arts museum in the Indian Ocean, in a former bishop's palace, with French and Creole art) and the Préfecture building (1734, the oldest civil building on the island).
🎫 Book tickets via GetYourGuideThe Tamil Hindu temple of Le Colosse (one of the finest Hindu temples in the Southern Hemisphere, built by Réunion's Tamil community descended from indentured labourers imported from southern India after 1848) has the distinctive Dravidian gopuram (tower gate) with its hundreds of painted sculptural figures — the same style as the great temples of Tamil Nadu; the temple hosts the Cavadee festival (Tamil Thaipusam equivalent, January-February) where devotees pierce their bodies with metal skewers as acts of devotion.
🎫 Book tickets via GetYourGuideThe Natural History Museum of Réunion (in the colonial garden, Saint-Denis) covers the unique endemic fauna and flora of the Indian Ocean islands — the Réunion ibis and the Réunion starling (both extinct, but with specimens preserved), the Réunion kestrel (critically endangered, endemic), the coelacanth (the living fossil fish from the Comoros-Réunion deep sea, known since the Cretaceous), and the natural history of volcanic island formation; the museum garden has the finest collection of endemic Réunion palms and tree ferns.
🎫 Book tickets via GetYourGuideThe Barachois (the historic waterfront of Saint-Denis, a former lagoon now converted to a public park and promenade) is the social heart of the city at dusk — the fishing boats, the inline skaters, the Tamil families and the Métros (metropolitan French, the term Réunionnais use for mainland French) all share the seafront; the sunset over the Indian Ocean from the Barachois with the lighthouse in the foreground is the classic Saint-Denis evening scene; the food trucks serving métissé Creole cuisine (samosas, rougail saucisse, riz cantonais) set up at dusk.
🎫 Book tickets via GetYourGuideThe Réunion Creole cuisine is the finest in the Indian Ocean — rougail saucisse (the most-eaten dish on the island: smoked Toulouse sausages sautéed with tomato, ginger, thyme, garlic and chilli in a reduction that coats every grain of rice), carry poulet (chicken curry, Réunion-style with turmeric, cumin, thyme and a distinct lack of coconut milk — drier and more aromatic than other Indian Ocean curries), bouchons (pork and prawn dim-sum, the Chinese heritage), achards (pickled vegetable condiment), and rhum arrangé (white rum macerated with vanilla, lychee, ginger, star anise or whatever the house recipe has developed over years).
Piton de la Fournaise (2,632 m, one of the world's most active volcanoes — erupting 2-3 times per year on average, with accessible recent lava flows) is the defining Réunion experience — the Enclos Fouqué caldera (12 km diameter, the ancient outer caldera of the volcano) is accessible by 4WD road from the Pas de Bellecombe viewpoint; when the volcano is not actively erupting (the Observatoire Volcanologique provides daily updates), the 6 km hike into the caldera and up to the Bory and Dolomieu craters (the two summit craters) passes through moonscape lava fields and sulfurous fumaroles.
🎫 Book tickets via GetYourGuideThe Piton de la Fournaise road (RN2 from Saint-Pierre, 90 km from Saint-Denis) passes through the most dramatic volcanic landscape in the Indian Ocean — the recent lava fields (some from eruptions in the last 10 years, with fresh black basalt pahoehoe and aa lava surfaces, the lava tube skylights, the lava tree moulds where trees were engulfed and the lava solidified around them leaving perfect tree-shaped holes) and the Plaine des Sables (the desert of multicoloured volcanic ash at 2,200 m altitude, the most alien landscape on a French territory).
🎫 Book tickets via GetYourGuideThe Cirque de Cilaos (25 km south of Saint-Denis, accessible by a spectacular mountain road with 400 hairpin bends cut into the vertical cliff walls of the cirque) is the most accessible of Réunion's three ancient volcanic calderas — the town of Cilaos (at 1,200 m altitude inside the cirque, accessible only through the narrow road) has the only vineyard on the island producing Cilaos wine, the hot springs (the only natural hot springs in the Indian Ocean, formerly a spa destination for wealthy sugar planters), and the extraordinary panorama from the Roche Merveilleuse viewpoint.
🎫 Book tickets via GetYourGuideThe lentilles de Cilaos (the UNESCO-registered Cilaos lentil, a green lens-shaped lentil of extraordinary flavour grown in the volcanic soil of the cirque, one of the finest lentils in the world — comparable to Puy lentils — which only grows in the microclimate inside the Cilaos caldera) is the gastronomic treasure of Réunion; served with smoked bacon, saucisson and a glass of Cilaos wine (the only island wine produced within a volcanic crater in the Indian Ocean) at the village restaurants of the cirque at dusk.
Cirque de Mafate (the wildest of Réunion's three cirques, with no road access — the only entry is on foot via multiple mountain passes or by helicopter) has several isolated Creole villages (îlets: La Nouvelle, Grand Place, Roche Plate, Aurère) with no cars, no paved roads, and supplies delivered on foot or by helicopter; the standard entry hike is from Rivière des Galets (4 hrs to La Nouvelle) or from the Col des Bœufs (2.5 hrs, the most used); the views of the cirque walls from inside (500-1000 m vertical walls surrounding the village plateau) are the finest mountain panoramas in the Indian Ocean.
🎫 Book tickets via GetYourGuideThe Grand Bassin waterfall (accessible from the village of Grand-Bassin, Rivière Langevin valley, south coast) is the most spectacular waterfall on Réunion — the 250 m cascade into a natural pool (the pool is swimmable at its base) surrounded by tree ferns and endemic vegetation; the 2 km path from the village to the waterfall (a steep descent on steps, 30 min down, 45 min back up) passes through the spectacular Langevin valley landscape where the rainforest meets the agricultural terraces.
🎫 Book tickets via GetYourGuideSaint-Gilles-les-Bains (50 km south of Saint-Denis) is Réunion's main beach resort and home of the l'Hermitage lagoon — the finest snorkelling lagoon in the Indian Ocean west of Australia (the fringing coral reef creates a perfectly calm 400 m wide lagoon with parrotfish, surgeonfish, leopard sharks, sea turtles and the occasional reef shark; water visibility 20+ m; 26°C year-round); the beach (Plage des Roches Noires and Plage de l'Hermitage) is powder-white sand; Saint-Gilles has the finest seafood restaurants on the island.
🎫 Book tickets via GetYourGuideThe farewell Réunion evening — ti-punch (the Caribbean-Indian Ocean rum punch: white rum, lime and cane sugar syrup, drunk before dinner as the universal aperitif of the French Overseas Territories), the Bourbon vanilla (the Réunion vanilla, the second-most expensive spice in the world after saffron, originally from Mexico but developed into the modern vanilla flavour profile on the Île Bourbon — now Réunion — in the 1840s when Edmond Albius, a 12-year-old enslaved boy, discovered the hand-pollination method that made vanilla farming possible) in pâtisserie créole (vanilla cream pastries).