Blizzard Peaks (ブリザードピークス,Burizādopīkusu?) is either the fifth or sixth Stage of Sonic Rush Adventure, depending on the player's choice. It is an ice-covered island to the far north on Blaze the Cat's planet and the home of the Vikings, a tribe of anthropomorphic ice bears. Aqua Material can be earned from here by completing this Stage's Acts.
Blizzard Peaks is a frozen island covered entirely in snow and frost, and is surrounded by icebergs and icy peaks. Befitting its name, the island has many, rather sharp, snowcapped black-stoned mountains whose peaks breach the white clouds obscuring the blue sky. Along the mountainsides, pure and often colorful ice form winding roads from ice patches, icicles, crystal clusters, symmetric ice pillars and spiky formations resembling pine trees. Additionally, the island holds an ice house village where the Vikings live.
The main gimmick of this stage features Sonic the Hedgehog and Blaze the Cat passing through much of the first level with snowboards, given to them by Tails. Other gimmicks featured are ice sheets that will launch the player into the air by contact, half-pipes made of ice that will keep the player sliding back and forth down their entire length, blue spring wines that can launch the player into the air, and icicles that can be climbed down on.
The boss of Blizzard Peaks is the Ghost Whale. It can be fought after clearing Blizzard Peaks Act 2.
At the start of this battle, the player stands on an ice floe while the Ghost Whale charges at the characters. To combat this boss, the player must stun the Ghost Whale by hitting its forehead and then jump into its mouth. The player then has to reach and hit the Ghost Whale's core after crossing an obstacle course within a time limit. The player is then sent back to the ice floe. Repeat this process two more times, and the Ghost Whale can be destroyed.