This is a sewer where Gloop likes to explore. The sewer system here has many levels and it’s easy to get lost here, so the bubbles are trying to get out of it as quickly as possible.

It is easy to slide along the walls in this track, watch out for small gaps in the wall that you can only pass through if you are small! There may be paths that let you skip over some turns by going above everyone else. Try to be the first bubble to leave the sewers!