Entry onto the wall was 30 RMB for adults - although like many attractions - free if your over 60! The walk is steep but easyish - take a photo of the park at the bottom so you can map your progress . There are drinks and toilet stops along the way and the views across the mountain ridge great. The entry ticket , I believe gives you access to bus back down the mountain once at the top, if you want to walk back down ,don’t go through last turnstile and miss the temple. We went to the temple and went down using the roller coaster and slide, 60 RMB for the two rides( includes entry ticket). Worth every penny! The first roller coaster is a cross between bob slay and roller coaster, need to use the brakes! The slide they give you gloves for braking and trousers to save rear wear! We had caught a didi ride from Chengdu, 50 minutes around 100 RMB , and finally found Wi-Fi to arrange return one same sort of cost.