Most of the rivers of Italy drain either into the Adriatic Sea, such as the Po, Piave, Adige, Brenta, Tagliamento, and Reno, or into the Tyrrhenian, like the Arno, Tiber and Volturno. The waters from some border municipalities (Livigno in Lombardy, Innichen and Sexten in Trentino-Alto Adige/Südtirol) drain into the Black Sea through the basin of the Drava, a tributary of the Danube, and the waters from the Lago di Lei in Lombardy drain into the North Sea through the basin of the Rhine.