Today's route crosses the tectonic structures of the Northern Tien-Shan and leads us to the regional tectonic border between the Northern and Middle Tien-Shan. After the Ala-Bel pass (3000 m), the descent begins along one of the most attractive river valleys of Tien-Shan – the Chychkan gorge. During the descent, landscapes change, from alpine to semi-desert. In the forest zone, our route will lead us to the Itagar Lake, Location 8. The lake was formed as a result of the collapse that occurred in the late Cenozoic age and blocked the gorge. The Itagar gorge is a favorite place of local nomads and collectors of wild berries of raspberry and blackberry. Next stop is an abandoned marble quarry, Location 9.
Further, the route leads us to the Ketmen-Tube valley (670 m above sea level). Here we learn about the Toktogul reservoir, ancient historical events related to the Ketmen-Tube valley, as well as hydropower resources of Kyrgyzstan, Location 10. In 1962, the active construction of the Toktogul hydroelectric station began on one of the major Tien-Shan Rivers, the Naryn River. The depth of the gorge reaches 1500 m, and the steepness of the slopes is 65–70 °. The dam was built in extremely difficult seismic conditions 9-10 points.  Overnight at the hotel on the shore of the reservoir.