How does the Adventure Island Waste Capital Team keep the Feng Shui Treasure Land from being entered by others?

Go in at night, when there are few people, or squeeze in first, and then find a spy to go out. The spy said that when there was no one outside, he would come out as soon as possible and then go in. I have tried this method for a long time, and the effect is really good. Believe me, yes, if your computer is stuck, it will take a long time to get out!