Areuse is a river located in the Canton of Neuchâtel in Switzerland. It flows through the picturesque landscape of the Jura Mountains and is known for its clear waters and scenic surroundings. The river is approximately 30 kilometers long and eventually joins the Thielle River, which leads to the Lake Neuchâtel. The Areuse is popular for outdoor activities such as hiking and fishing. Its banks are lined with walking trails, making it a favorite spot for nature lovers and tourists. The river also supports a variety of wildlife, contributing to the region's biodiversity.