Ha that is an awesome GIF. I didn't really plan anything out, just sort of made the igloo :) I realize now looking back at the pictures in this post that I only showed the south and east sides of the snow structure (the igloo is on the east end). Not all of that structure is the igloo. Here is the north side, where you can see two sets of stairs and one of the two sledding tracks (coming straight at the viewer). There is another sledding track going down to the right that you can't really see in this shot, but if you sit at the top of the stairs on the left you can choose to sled down toward the viewer or down to the right. The igloo is at the far left here (looking at its side).