Långsjön is a lake located in Sweden, known for its clear waters and scenic surroundings. It is situated in the municipality of Nacka, close to Stockholm. The lake is a popular spot for outdoor activities such as swimming, fishing, and hiking along its shores. The area around Långsjön features lush forests and diverse wildlife, making it an attractive destination for nature enthusiasts. There are several walking trails that provide access to the lake and its beautiful landscapes, offering visitors a chance to enjoy the tranquility of the Swedish countryside.