in the cave section of chapter 1 near where the moving statue is i found a way to get out of bounds while playing with my friend, near the house and the moving statue there is a little hole in the wall, it leads to a small alcove. if you go to the end and sprint into a part of the wall you can get on top of the cave, if you then run strait in the out of bounds until you see a portion of ground thats rock instead of grass, go along that and once it ends you should be able to see the hotel portion nearby, i dont know how to get into the hotel section yet but i feel this would be good to know.

messed around, you can also just go straight to the end of the cave section with this, I don't know if it saves time, but the hotel section that you land on might not be the starting floor of the hotel so if you can clip into it it would save time over skipping straight to the end of the cave or playing the cave as normal