Kok Zhaiyk or Kek-Jaiyk is a valley located close to the Jeti-Oguz gorges in the Issyk-Kul region, at an altitude of 2,800 metres above sea level. It is a valley distinguished by its beauty, characterised by spruce forests.

The Kok Zhaiyk jailoo, known as the valley of flowers, is situated 5 km south of the Jeti-Oguz resort. The valley is blanketed in red during the blooming of poppy fields from May through early summer. Stretching some 15 km, the valley is a serene setting perfect for pitching a tent. Hiking is also an excellent way to explore this verdant landscape.

According to some accounts, during the Soviet period cosmonauts were sent to the Kok Zhaiyk flower valley to rest following their space missions.