Toba is a large volcanic lake located in North Sumatra, Indonesia. It was formed by a massive eruption about 74,000 years ago, which is considered one of the largest volcanic eruptions in Earth's history. The lake is approximately 1,707 square kilometers in size and is surrounded by stunning mountains and lush landscapes. The lake is home to the Batak people, who have a rich cultural heritage and traditions. Toba is also known for its unique ecosystem, including various fish species and beautiful flora. The area attracts tourists for its natural beauty, cultural experiences, and opportunities for outdoor activities like hiking and boating.