The Ayeyarwady River which is the life-blood of Myanmar, flows Across Central Myanmar from North to South. The first defile is from Myitha village to Myazeti village in Myitkyina Township in Kachin State and is over 36 miles long. If you take a look from Hsinbo, it was as if a mountain has blocked the entrance of the defile. As you enter the defile, you can feel the strong water current flow and the river itself is not smooth and calm anymore. It is for only about 300 yards to 10 yards.

The motorboat has to travel according to the twists and mountains were blocking your way. Arriving at one place, one could see cliffs crossing the defile as if it was in an attempt to stop the flow of current and there you will see the first narrowest defile.

The first defile and its narrowest were only about 50 yards away. You will also arrive at a place where a figure envisioned like an elephant kneeling down, in reality, these were just position of rocks and cliffs and caves in the defile. Moreover, you can also see people panning for gold, using elephants to transport logs in that defile too. The 36 mile long defile on the upstream of the Ayeyarwady is one of the loveliest place in the 1,350 mile route of the Ayeyarwady River.