Висла is the longest river in Poland, stretching about 1,047 kilometers. It flows from the Carpathian Mountains in the south to the Baltic Sea in the north, passing through major cities like Kraków, Warsaw, and Gdańsk. The river plays a crucial role in the country's ecology and economy, providing water for agriculture and transportation. The river has a rich history, serving as a vital trade route for centuries. It is also known for its diverse ecosystems, supporting various species of fish and birds. The Vistula Boulevards in Warsaw are popular recreational areas, attracting locals and tourists alike.