Tissø Lake is the largest natural lake in Denmark, located in the Region of Zealand. It covers an area of approximately 12 square kilometers and is known for its rich biodiversity, including various fish species and bird populations. The lake is a popular spot for outdoor activities such as fishing, birdwatching, and hiking along its scenic shores. The lake is surrounded by lush landscapes and is part of the Tissø Nature Reserve, which aims to protect its unique ecosystems. Tissø Lake also has historical significance, with archaeological findings indicating human activity in the area dating back to the Stone Age.