Join 教育・家族 upcoming events being held in Kabupaten Serdang Bedagai. Kabupaten Serdang Bedagai is a regency located in the province of North Sumatra, Indonesia, known for its natural beauty and cultural richness, including the extraordinary Lake Toba, the largest volcanic lake in the world, and the captivating Sipisopiso Waterfall, the highest waterfall in Sumatra, as well as being home to the Batak ethnic group, renowned for their traditional music, dance, and architecture, providing a unique and vibrant atmosphere for various cultural events and festivals.