Aurora Icefield is the third arena in Sonic the Fighters. The level is set in a frozen place. The arena is surrounded by giant ice blocks instead of ropes like in the previous levels. Bark the Polar Bear is the opponent for this level;once you have defeated him, you will receive a Yellow Chaos Emerald and will proceed to the next round.
This arena also appears as Bark's home stage in the Sega Saturn game Fighters Megamix. According to the Fighters Megamix Official Guide, Bark is the #1 snowboarder of North Island. As such, it's possible that Aurora Icefield is located on North Island.