How to get to Penglai maze map?

First, go to the innermost place upstairs, and notice that there are two kinds of floors that can fall off. If you want to get everything together, you should step on the blue one first and fall into a place where there is only a big water treasure chest. When you get something, you will step on the array and return to the upper entrance. Go in again, step on the ordinary floor, fall to the lower floor, go to the middle swamp area (there is wind poison, it is inevitable to prepare Hanshan maple), turn on the organ, cross the newly emerged wooden bridge, you can see the stairs not far away, go upstairs and return to the upper floor, and see a wind treasure chest not far from the exit.