Greece is home to several important rivers that have shaped its landscape and history. The longest river is the Aliakmon, flowing through northern Greece and providing water for agriculture. Other notable rivers include the Axios, which forms part of the border with North Macedonia, and the Pindus river system, which runs through the mountainous regions. Many of these rivers are significant for their ecological and cultural contributions. The Acheron, known as the "river of woe," is steeped in mythology, believed to be linked to the underworld. Additionally, rivers like the Nestos support diverse wildlife and are vital for local communities.