User blog comment:Mckrongs/Monster Hunter 4 for the Nintendo 3DS/@comment-1758220-20130808162405/@comment-6050823-20130808222744

@RaxisESP Capcom said it. The Frozen Sea has many whirlpools but, sometimes their are afew that are much larger than usual during certain times and with these are strange settings along with them. I will say your right though, the whirlpools are natural in the area but, afew of them exceed expectations plus if that Whale Dragonship is suggesting anything, we could be facing of against something in the water(The way its raining in the CG cutscene is suggesting something bad may happen).