Sea Serpent

Sea Serpents were massive sea-dwelling creatures that lived in the seas of Narnia. Sea Serpents seem to be generally hostile to seafarers. The Dawn Treader and it's crew encountered a sea serpent on their voyage in search of the Seven Lost Lords of Narnia. It coils itself around the ship, seemingly in an attempt to break it in two. Due to the serpent's extremely strong hide, swords and arrows were useless against it, and only by following 's advice to push the coiled body over the side of the ship, were they saved. Presumably, Sea Serpents resided in the Silver Sea, near Aslan's Country. It was also one of three sea beasts that Sea People were afraid of.