Nothing on the shoreline is aggressive to players moving near them. Penguins, Ox, Ice Furies, not even the Sword Spirits will attack unless you attack them or their compatriots.
The Penguins run away when attacked, but they can be approached harmlessly at short range and attacked, and they should not be able to run out of range.
Cute Snowmen are a dig point, not a creature
Icespine Pass Edit
The Flooding Water Elementalist is found here at 471 284