Creatures - The great lake’s Giant Squid

The Hogwarts great lake is home to many creatures, one of them is a friendly giant squid. The giant squid is known to be playful and helpful to all students of Hogwarts.

The creation features:
The Hogwarts giant squid saves a freezing Dennis Creevey from the great lake
A sinking boat
Hagrid brings first year students to school by boat
A passing mermaid
Highland’s magical water vegetation 
Lots of seaweed. I wonder what is hiding in it…