Design of tourist route from Meishan to Kangding

Chengdu starts from Chengya (or Chengwenqiong) expressway, reaches Yucheng Ya 'an, and along the beautiful Qingyi River, reaches Erlang Mountain, the longest highway tunnel in China (4172m). Pass through Erlangshan Tunnel (4. 1 km), the longest highway tunnel in China, and after two days of yin and yang, reach Dadu River Valley (the largest and deepest canyon in western Sichuan). You can visit Tiesuo Lu Gu at your own expense.