How to get to the cliffside highway? Is there a one-day tour?

I am on a group tour, starting from Shanghai.
The recommended approach for visiting the cliffside highway is to go by self-drive. If it’s close by, a day trip is sufficient; if it’s far, it’s suggested to plan for 2-3 days.
It is recommended to go by car, as it is remote, group tours for a day trip are not very common.
I am part of a group tour, starting from Shanghai.
The suggestion for the cliffside highway is to drive yourself. If it’s close by, one day is enough; if it’s far away, it’s recommended to plan for 2-3 days.
It is recommended to go by self-drive, as it is remote, and group tours for a one-day trip are not very convenient.