The defining day of the trek. From the valley floor at 2,500m the trail climbs 1,400 metres to Ala-Kul North Pass at 3,906m — a sustained and demanding ascent through alpine meadow, boulder fields, and finally loose scree in the final steep section. Your guide sets the pace and manages rest stops throughout. At the top, the full Terskey Ala-Too range spreads in every direction — the widest and highest view of the entire five days. Then the short descent to Ala-Kul Lake at 3,550m. Deep turquoise, glacier-fed, completely still, surrounded by peaks above 5,000m. The colour is not what you expect from any lake you have seen before. Camp directly at the water's edge as the temperature drops. Nights at 3,550m are cold — prepare for it.
Meals: Breakfast, Lunch, Dinner
Accommodation: Tent camp, Ala-Kul Lake (3,550m)