Go out onto the Boardwalk and go left past the S/D and you will be at the YC within 5 min. If you go to the right it will take you a few extra minutes since you will have to go past the BC. Also you would save some extra time depending on where you are located in the villa hallway. If you are farther from the elevator, just walk to the end of the hallway and take the stairs down and you will come out most likely on the back walkway (if you went to the left you would be heading to the Studios) and just go past the S/D and you will be there.