Who's Bayou is one of the two choices for the second leg of your journey in the Logical Journey of the Zoombinis, the other being the Deep, Dark Forest. Who's Bayou is a region composed of the following puzzles: Captain Cajun's Ferryboat, Titanic Tattooed Toads, and Stone Rise. It is named so because of the fact that when the Zoombinis traveled through, they did not know who to name the swamp after, hence the name.
This region is a swamp notably wet and marshy. There is a river that comes through and turns back around. Crabs migrate up the river every so often. Once there was a leg that split off of the main river, but dried up this is where the Stone Rise is. Like so the western most area of the region is dryer than the Eastern part of it.
As one would expect, there are toads found here, but they are fairly large compared to Zoombinis. They commonly have marks on their backs. Giant Crabs live here too and migrate up the river. Creatures like Captain Cajun live here also.