To do: Add a map and tidy the article like the other unused area articles.
A video showing the map, it starts at 10:22:
This map, in comparison to others, is very large and has very little actual textures; instead most being for testing purposes instead of actual gameplay implementations. The Onions are inaccessible to Olimar, and nothing in the area actually looks like it'd be in a Pikmin environment. The area is also, for the most part, very barren. In the middle of the map, there is what appears to be a very large stump with a helicopter pad symbol on it. This could be where the S.S. Dolphin could've landed if the map were more complete, or where something else unknown was planned for later. The design is rather intricate, with many paths and slopes that lead to where you were before, etc. There also seem to be little caves that Olimar can enter, but with no results. There are many unused objects in the map as well, such as fences that aren't seen anywhere else.
Click an area on the image