You will have to talk to the ferry guy to go back to the start, catch an orange train to the Gas Station place and then catch a pink train to the lighthouse then a red train to the jungle and go on the zip line thing (i dont know what it's called) and you should see the 'esc' door, go through it and go through the center door, it should open when you get close enough. After that you will have to walk through a cave with lightposts and a bamboo jungle and down an escalator you should see train there, get on the train (the doors will open for you) you will travel to an ice land, get of the train and walk towards the man and his hot air balloon, he will tell you what to do from then on! Have fun!