How many days does it take for the best photography driving route from xinduqiao to Shangri-La to return to Chengdu?

I suggest you consider playing for five days. (It takes 2 days to return to Chengdu)

There are many beautiful scenery on this route.

From xinduqiao to Shangri-La, take Daocheng Aden.

There are several passes and canyons along the way with beautiful scenery. However, you need to walk in the ravine. If you don't know the way, it is not recommended to take risks.

Send a selfie of yourself today.

Behind the rugged mountain road (top) is the beautiful scenery (bottom)