Well, the scenic area isn't very big. It's about 2 kilometers from the ticket office to the main area, less than a ten-minute drive. After getting off the bus, there are two routes: one for viewing the mountains on the left and one for viewing the lake on the right. I recommend choosing the lake route first. The lake isn't very large. You can walk along the stone path to the Jade Dragon Pavilion, then walk down to the lakeside and explore as you go back to the bus stop. The whole trip takes about two hours.
The vendors should be managed a bit; they keep chasing after you trying to sell you things, like food.