Lake Neuchâtel is located in the French-speaking part of Switzerland. It's 38.3 km long and up to 8.2 km wide, making it the largest lake fully located in Switzerland. The lake stretches across the cantons of Neuchâtel, Vaud, and Fribourg. Lake Neuchâtel is known for its picturesque surroundings and offers numerous recreational opportunities like sailing, swimming, and hiking. In the surrounding areas, you can also find many vineyards that are typical for the region. Additionally, the lake is an important reserve for many bird species and a popular destination for nature lovers.