Ghost Valley 2
From the Super Mario Wiki
Ghost Valley 2 is the second course of the Flower Cup in Super Mario Kart. Like Ghost Valley 1, it is a dark bridge surrounded by Boos, and it is easy to accidentally fall from the stage. It is longer than the first, however, and features more sudden dropoffs and sharp turns, as well. It also features a zipper at the end of the course, which may save time but is difficult to use, since it is placed right after a curve at the edge of the track. Just after the zipper there is a jump line with an Item Box behind. The Cape Feather is of use at this course again: It can help you to jump over the gap soon after the start, while others would normally take the regular track around (where the two single Item Boxes are).
In Mario Kart Wii, a remake of the course is included as one of the four tracks in the Shell Cup. Since there's no Cape Feather in the game, a ramp was placed there needing a boost to get across.
