3DS Rosalina's Ice World

Rosalina's Ice World is the second race course of the Special Cup in Mario Kart 7. Located on an icy road, it is the first and only course in the Mario Kart series to be owned by Rosalina, and as a result draws inspiration from the Super Mario Galaxy installments. The drivers can dive underwater where some penguins swim, in an area which strongly resembles the main planet of Cosmic Cove Galaxy. This is the second Special Cup course to take place in a snow/ice-themed area, the first being Vanilla Lake 2 in Super Mario Kart. The course returns in Mario Kart Tour, making its first appearance in the Rosalina Tour.

Course layout
The course starts off in a snowy area with snow covered domes and a structure resembling the Comet Observatory off to the side. The racers then take a slight turn to the right and pass through a halfpipe-like three-quarters turn with the right edge as a pit and some coins. After passing under the beginning of the turn and continuing forward, a small ramp allows racers to jump onto an icy area with penguins and a few coins, with the first lap giving them a choice of the icy path, or an underwater cavern filled with more coins. The second lap, however requires racers to go underwater unless they have a Mushroom, use the Super Mini-Turbo, or drive straight after the curve with at least eight coins and hold the Circle Pad down, as the kart goes higher when this is done. After the icy area, racers go through a cavern with icicles protruding from the ground, which can be shattered. The road then splits and gives the racer a choice of taking a narrow road with a series of Dash Panels, where a Starshroom can be seen on the right, or a wide path with no boosts. A final jump is then encountered, and finally, racers turns to the finish line. In the background of the course, the starting planet of the Gateway Galaxy can be seen in some areas. When racing online, the underwater penguins are absent.

This is the only new course in the game which does not involve gliding.

Shortcuts

 * At the very beginning, there is a patch of snow to the right that can be cut across with a Mushroom or Super Star.
 * Just before the spiral section, by drifting off the side of the wall to the right at an extreme angle, it is possible to clear a good section of the chasm. How much the player skips depends on how extreme the angle the player took was. This can be done with or without a Mushroom.

Mario Kart Tour
Rosalina's Ice World reappears in Mario Kart Tour, starting with the Rosalina Tour. Like all other courses, Rosalina's Ice World has a reverse variant referred to as Rosalina's Ice World R, a trick variant known as Rosalina's Ice World T, and a reverse and trick variant known as Rosalina's Ice World R/T, which debuted in the 2021 Space Tour. Penguins now appear on top of the ice during the first lap, and move underwater for the second lap. It retains most of its appearance from Mario Kart 7, though with a few minor differences. Most notably, the planet seen in some areas is now a 3D model that is not based on the starting planet from Gateway Galaxy anymore. Trees were added to the background in spots, and the arrow signs in the first section are removed. In the reverse variant of this course, a Glide Ramp was added to the exit of the icy cavern with icicles. In the reverse and trick variant, this Glide Ramp is lowered down on lap 1. It is a favorite of Peach (Explorer), Fire Rosalina, Tanooki Rosalina, Penguin Toadette, Cat Rosalina, Nabbit, King Bob-omb, Shy Guy (Gold), Lakitu (Party Time), and Birdo (Black). It is also a favorite of Rosalina (Volendam) if she reaches level 3, Penguin Toad if he reaches level 6, and Mario (Santa) if he reaches level 8.

Rosalina's Ice World is the fourth course after DS DK Pass, DS Airship Fortress, and Wii Maple Treeway to be the signature course of two tours (the Rosalina Tour and the 2021 Space Tour).

For this course's tour appearances, see List of 3DS Rosalina's Ice World tour appearances in Mario Kart Tour.

Names in other languages
Rosalinas Eisplanet Ghiacciaio di Rosalinda