Upon arrival in the town of Bitung in North Sulawesi, you will be greeted by a beautiful mountain with a twin peak called Mt. Dua Sudara (often also written Mt. Dua Saudara), meaning : the two brothers. This extinct volcano is located some 12 km from Bitung, east of Mt. Klabat and faces the Tangkoko Batuangus Nature Reserve at Madidir Unet in the subdistrict of Madidir.

The twin peaks of Mt. Dua Sudara provides a perfect panoramic photo shoot especially when taken from the coast of the Lembeh Strait. Although the volcano is impressive, yet until today not many have ventured the climb to its peak that stands at 1,351 meters above sea level.

The foothills of Gunung Dua Sudara are dense with sugar palm trees that were planted here on purpose by the Bitrung government for the conservation of the environment, since according to the Wallace Theory, the Tangkoko reserve and Mt.Dua Sudara are regularly blown by the hot airstream that flows from south to north. When left unhampered the hot wind will blow straight to the North Pole, accelerating the melting of glaciers there.