The course is based on the course Icicle Caverns from Frosted Glacier. The level begins outside, with a Warp Pipe leading to the icy underground area. To the left of the Warp Pipe is a hidden area with a ? Block that contains a 1-Up Mushroom. Two Huge Icicles fall onto platforms, with a ? Block found above a platform in between. Two Swinging Hammers are found, and one can be used to reach a ? Block above an icy platform. Another Huge Icicle is found next to a small one, along with a group of Koopa Troopas. More Swinging Hammers are found, and are used to cross above a pit. Another Huge Icicle falls onto a platform, and a Buzzy Beetle can be found nearby. A group of icicles is found above a pit crossed by two Swinging Hammers. A Buzzy Beetle is found underneath Brick Blocks, followed by a Swinging Hammer on a track. Four icicles and a ? Block are found as the Swinging Hammer moves. A slope with multiple Buzzy Beetles and icicles on it is encountered, followed by a two Huge Icicles. A Green Ring is found before another Swinging Hammer on a track. Two Swinging Hammers are found before another one on a track, and a P Switch can be used to cause Blue Coins to appear. A Paratroopa and a Warp Pipe are found. The player is led back outside, where a Swinging Hammer and the Goal Pole are found.
Alternatively, the player can use a P-Acorn to fly up above the wall before the pipe leading underground, which will lead to the end of the level.
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