From the Super Mario Wiki
Ghost Valley 1 first appears in Super Mario Kart, and appears as a retro track in Mario Kart: Super Circuit.
Appearance in Super Mario Kart
racing in Ghost Valley 1
Ghost Valley 1 is the third course of the Mushroom Cup in Super Mario Kart. It's a rickety old bridge surrounded by Boos (who act as mere decoration and don't effect gameplay at all), and falling off the course will result in having to be rescued by Lakitu, a time-consuming ordeal which can set the player back. The course has limited guard edges, but bumping into a tile at the edge of the bridge will destroy it, allowing players to go through and fall off the stage. There are several jump lines on the track, the last one allowing the driver to cross a gap. Two other lines are placed directly before two Item Boxes which makes those only reachable by driving back or avoiding the jump lines with a Cape Feather. A Cape Feather is also useful to take a shortcut at the end of the course: Just after crossing the gap, the player should not turn right to follow the regular path but use a Cape Feather to jump on the narrow plank in front of them and then moving on and turning left to reach the target line.
Appearance in Mario Kart: Super Circuit
Ghost Valley 1 is the third track in the Extra Mushroom Cup. It uses the background from Boo Lake. It is pretty much the same as its SNES counterpart (except for the usual differences like different coin and item box placings), although the two small bouncy pads before the two lone item boxes and the legs to hold the track up are removed.