Toba Lake is a large volcanic lake located in North Sumatra, Indonesia. It was formed by a massive eruption of the Toba supervolcano around 74,000 years ago, making it one of the largest volcanic lakes in the world. The lake is approximately 1,707 square kilometers in size and reaches depths of up to 505 meters. Surrounding the lake are stunning landscapes, including lush hills and the Samosir Island, which is situated in the middle of the lake. Toba Lake is a popular tourist destination, known for its natural beauty, cultural heritage, and opportunities for outdoor activities such as hiking and boating.