Half a day is not enough. Zushan is quite big, with attractions such as Huaguo Mountain, Tiannv Peak, Lover's Valley, North Dragon Pond, South Dragon Pond, and Gallery Valley. Half a day is definitely not enough. My recommended route: East Gate in the morning - Gallery Valley - Accommodation room in Muzhai and - Fairy Cloud Bed - Lunch - Huaguo Mountain - Tiannv Peak - Dinner, the next day: Beilongtan - Lover's Valley ——Leave through the north gate.
I recommend spending at least 2 days on Anzu, because the scenic area is large, with peaks and deep valleys, which consumes a lot of energy, so you need to allow yourself some rest time, otherwise it will affect the tourism effect.
I forgot the price of the tickets to Zushan, but all rides there are based on tickets, so it is free to do the sightseeing car market.