Lake Sempach is a picturesque lake located in central Switzerland, near the town of Sempach. It covers an area of approximately 14 square kilometers and is known for its clear waters and scenic surroundings, making it a popular destination for both locals and tourists. The lake is part of the Aare river system and is fed by several small streams. It is home to various species of fish, including perch and pike, and offers recreational activities such as swimming, sailing, and fishing. The surrounding area features walking and cycling paths, enhancing its appeal for outdoor enthusiasts.