The Chong Kolduk Lake, or Big Kolduk Lake, is the largest and most visited alpine lake in the Kichi-Alai foothills above Kyrgyzstan’s Gulcho valley. Sitting at 2,470 meters elevation, it’s the first lake travelers encounter on the climb up from Köldün Shaty village, just 5 km from the Osh–Alai road junction. Roughly 700 meters wide, it dwarfs its quieter neighbor Kichi Kolduk Lake and rests in a broad basin of alpine meadows, rocky slopes, and seasonal streams draining the Alai range. Its accessibility makes it a natural starting point for day trips into the highlands.

Le lac Kichi Kolduk (Petit Köldük) est un petit lac alpin situé dans les contreforts du Kichi-Alai, au-dessus de la vallée de Gulcho, dans le sud du Kirghizistan, à une altitude d’environ 2 540 mètres. Il se trouve dans un bassin de montagne ouvert au pied d’un sommet pyramidal caractéristique culminant à 3 519 mètres, qui domine le paysage.