Σάβα, also known as Sava, is a river in Southeast Europe that flows through several countries, including Slovenia, Croatia, Bosnia and Herzegovina, and Serbia. It is approximately 945 kilometers long and is a significant tributary of the Danube River. The river is known for its picturesque landscapes and is an important waterway for transportation and trade in the region. The Sava River basin supports diverse ecosystems and is home to various species of fish and wildlife. It also plays a crucial role in agriculture, providing irrigation to surrounding areas. The river is popular for recreational activities such as fishing, boating, and swimming, attracting both locals and tourists.