The Biggesee region is located in North Rhine-Westphalia, Germany. It is centered around the Biggesee, a large reservoir created in the 1970s for water supply and flood control. The area is known for its scenic landscapes, including forests and hills, making it a popular destination for outdoor activities like hiking and cycling. The Biggesee itself covers approximately 8.5 square kilometers and is surrounded by several towns, including Olpe and Attendorn. The region offers various recreational opportunities, such as sailing, fishing, and swimming, attracting both locals and tourists throughout the year.