The Gauja is the longest river in Latvia, flowing approximately 452 kilometers. It originates in the Gauja National Park and meanders through picturesque landscapes, including forests and sandstone cliffs. The river is known for its clear waters and diverse ecosystems, making it a popular destination for outdoor activities like kayaking and fishing. The Gauja is also significant for its cultural heritage, with several historical sites along its banks, including medieval castles and ancient settlements. The river plays a vital role in the local economy and tourism, attracting visitors who seek to explore its natural beauty and rich history.