6 days in Xinjiang

You may use the following routes as a reference.
Day 01: Arrival in Urumqi
International Bazaar – Xiinjiang Museum – Erdaoqiaomin Street
Day 02: Urumqi – Heavenly Lake – Kashgar
Tianshan Mountains and Heavenly Lake – Kashgar
Day 03: Kashgar
kashgar Bazaar – Kashgar Old Town – Abakh Khoja Tomb – Id Kah Mosque
Day 04: Kashgar – Karakul Lake
Karakul Lake
Day 05: Kashgar – Turpan
Jiaohe Ancient City – Karez System – Grape Valley – Flaming Mountain
Day 06: Turpan
Gaochang Ancient City – Emin Minaret – Astana-Karakhoja Ancient Tombs – Bizalkik Thousand Buddha Caves – Aydingkol Lake
You can change the visiting order as your willingness. Hope this will be helpful.