It is generally recommended to spend 7-10 days traveling in Xinjiang, which allows you to fully appreciate its scenery and culture. If you have ample time, you can also choose a longer travel itinerary, such as the Kashi-Yili loop, which takes 11-13 days, the Northern Xinjiang Grand Loop, which takes 13-17 days, or the Entire Xinjiang Grand Loop, which takes 40-50 days. Of course, the specific number of days for your trip should be determined based on personal interests, itinerary arrangements, and actual circumstances.?