. (). $57 night. Directions to Centre Commercial Grand Quartier (Saint-Grégoire) with public transportation · Bus: 12 14 C4 · Train: K3. Géant Casino5 locals recommend. Show all. Spadium Saint Grégoire3 locals recommend Rennes 2 and Business School. Located at the northern entrance to Rennes, this site connects two major shopping centres – The Centre Saint-Grégoire and Grand Quartier – at the heart of a. Leclerc SAINT GREGOIRE7 locals recommend. Nearby. Aquatonic Rennes3 locals recommend. Individual Host. The Autorité de la concurrence clears the acquisition of the Géant Casino hypermarket of Saint-Grégoire (Brittany) Rennes, the Autorité, in. Géant Casino Chic and sober apartment in the center of Saint-Gregoire.