River Navigation
Preliminary
On the way down the river, either on foot or by boat, we are required to master the navigation of the river as well as land navigation in the course of mountain forests. In practical science of navigation of the river has long been recognized by the Dayak people in Kalimantan hinterland. Because the river is the only means of transportation for them. And in determining its position on the river, they use the signs of nature in the form of a cascade, the bend of the river, narrowing / widening of rivers,...