Marseille, located in the south of France, must arrive in summer on the northern shore of the Mediterranean Sea, on a railway line, 836 km northwest of Paris and 350 km from Lyon. Marseille's topography is undulating, surrounded by limestone hills on three sides. The southeast is surrounded by the Mediterranean Sea. The water depth is wide and the port is no rapids. The 10,000-ton ship can be unimpeded. In the west, there are Rhone rivers and flat river valleys that connect with Northern Europe. The location is unique.