The journey is about 72 kilometers (to and fro) down the Simpangan River and ending at Bambangan village. It only takes a half day to reach if you're robust and energetic. However, if you're not as energetic, it may take 20 hours to reach, like for some of my friends.
Throughout the journey, it was quite challenging because we had to go through rocky paths and were confronted with extremely hot weather. Actually, a village road was available, but we did not know about it and had no guide. We just relied on the protection of God, the flow of the river, the sun, and maps from Google Earth.
When the sun began to sink in the western horizon, we built a camp beside the river, which was full of chunks of rock. The Sabbath had started, and we performed activities according to the requirements of the Sabbath. As usual, we sang hymns- and delivered Bible lessons and spiritual food.
The next challenge on the next day was that we encountered several dead ends that forced us to forge a new path. After 8 hours of walking, we finally reached the end of the village in Kota Marudu, Tungab village. To reach Bambangan village, we have to cross seven rivers. That was the first time I arrived in the village together with seven of my friends, which I had previously often heard the name of the village.