France (République Française) is a Republic, that is organised as a unitary semi-presidential republic. France is divided into 26 administrative regions, of these 22 are in metropolitan France (21 are on the continental part of metropolitan France; one is the territorial collectivity of Corsica), and four are overseas regions (Guadeloupe, Martinique, French Guiana, Réunion) the French Republic also has six overseas collectivities (New Caledonia, French Polynesia, Wallis and Futuna, Mayotte, Saint-Barthélemy, Saint-Martin and Saint-Pierre and Miquelon). It's part of the European Union. France is bordered by Belgium, Luxembourg, Germany, Switzerland, Italy, Monaco, Andorra, and Spain, with Mediterranean Sea and the Atlantic Ocean. Between the cities beyond the Capital Paris, that it accommodates alone nearly 20% of the entire French population, we can cite Lione, Grenoble, Marseilles, Nice between the Rodano and the Alps; Tolosa and Bordeaux in the Aquitanic River basin; Nantes, Brest, Le Havre on the Atlantic coasts; Lille, Rouen, Nancy, Metz in the North; Strasburg on the renan axis.

The French territory is composed in wide part from hilly and plain areas, where many rivers runs. The French rivers represent an important and articulated hydrographical network, four main fluvial river basins exist: three of they, those of the Seine, the Loire and the Garonne flow in the Atlantic Ocean; one, that of the Rhone, run between the Alps and the Central Massif flow in the Mediterranean Sea. Many rivers are navigable and are connect from canals that together form an extended net of 8.623 km of inner navigable ways.