WHERE is the entrance to chillbreath caverns near the monorail station?

From the monorail station, head down towards the lake following the path all the way around to the first lamppost. There should be a path that leads off to the left and a lamppost that says "Brightwall Village." At this juncture, go left up the mountain, following the path, and you will see another lamppost also reading "Brightwall Village." From this point, start heading left up the side of the mountain. When you see the treasure chest, continue down this path and there is the entrance to the uphill Chillbreath Cavern Entrance.