Lazarets de la Grande-Chaloupe, Quarantine station in Grande-Chaloupe, Réunion Island, France

The Lazarets de la Grande-Chaloupe are two quarantine compounds in a ravine on the boundary between Saint-Denis and La Possession. Lazaret No. 1, on the La Possession side, has a courtyard that once held a fountain with two basins, two dormitories, an isolation pavilion that also served as an infirmary, a longère and a cemetery, all within walls. Lazaret No. 2, over a kilometre upstream near the torrent, retains ruins of an administrative building and two dormitories. The restored Lazaret No. 1 building shown has a pale ochre facade, a corrugated metal roof and a gallery on wooden posts with diagonal braces; its green louvred shutters line the front.

Lazaret No. 1 was created in 1860 to replace the Ravine-à-Jacques lazaret, which was badly sited in a narrow valley and had become too small. Two dormitories, an infirmary used as an isolation pavilion and a longère were built, all enclosed by walls. The site was listed as a monument historique on 22 October 1998.

The isolation pavilion of Lazaret No. 1 now holds a permanent exhibition on engagisme and quarantine, while the partly collapsed longère displays one on Réunion's plants and their uses in the engagisme era. The name Grande Chaloupe refers to the ravine that marks the boundary between Saint-Denis and La Possession.

Lazaret No. 1 lies in the Grande Chaloupe ravine, which forms the boundary between Saint-Denis and La Possession; the isolation pavilion and one dormitory are restored and open, while dormitory No. 2 is occupied by the Direction départementale de l'Équipement and cannot be visited. Lazaret No. 2, over a kilometre upstream, is in ruins and closed to visitors. The site includes uneven ground and a short step up to the gallery.

The isolation pavilion of Lazaret No. 1, restored between 2004 and 2011 by the association C.H.A.M, now holds a permanent exhibition on engagisme and quarantine; some finds from the 2012 archaeological digs are displayed there. The longère, partly destroyed by a landslide, houses an exhibition on the plants of La Réunion.