The Lake of Neuchâtel is the largest lake located entirely within Switzerland. It spans approximately 218 square kilometers and is situated in the western part of the country, bordered by the Jura Mountains to the north and the Alps to the south. The lake is known for its clear waters and beautiful scenery, making it a popular destination for outdoor activities. The lake is fed by several rivers, including the Thielle and Areuse, and drains into the Rhine River system. Surrounding towns, such as Neuchâtel and Yverdon-les-Bains, offer cultural attractions and recreational opportunities. The lake is also home to diverse wildlife, including various bird species.