FTP, name this river which flows through Krakow and Warsaw, and is the longest river in Poland.
One tributary of this river flows from the east to join it at the village of Modlin, that being the Narew River. Another tributary flows through the artificial Lake Solina on its way north, that being the San River. An even better known tributary, the Bug River, flows northwest to meet it after initially passing through Chervonograd. A couple of its branches including the Nogat flow into a namesake lagoon, also known as Frisches Haff. This river rises in the West Beskid range of the Carpathians before passing through cities like Torun. Its lagoon is separated by a small spit from the Gulf of Gdansk, the endpoint of this river, which is connected by a canal to the Oder River system to the west. FTP, name this river which flows through Krakow and Warsaw, and is the longest river in Poland.
One tributary of this river flows from the east to join it at the village of Modlin, that being the Narew River.
Vistula River (or Wisla)