Lake Kasumigaura is the second-largest lake in Japan, located in Ibaraki Prefecture. It covers an area of approximately 220 square kilometers and is known for its rich biodiversity, including various fish species and waterfowl. The lake is a popular destination for recreational activities such as fishing, boating, and birdwatching. The lake is also significant for its role in local agriculture and water supply. It connects to the Tone River and serves as a crucial resource for irrigation in the surrounding areas. Additionally, Kasumigaura is home to several parks and scenic spots, making it a favored location for nature enthusiasts.