Pondok Batu, Indonesia offers 2 beaches perfect for sunbathing, surfing, swimming, and more. Pondok Batu, Sumatera Utara, Indonesia, is known for its proximity to Lake Toba, the largest volcanic lake in the world. The best time to travel to Pondok Batu, Indonesia, is from May to September, when the average air temperature is around 27°C (81°F) and the water temperature is approximately 29°C (84°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!