Sirens who live in most waters. They will try to lead you to places where you will most certainly meet your death.
Krakkenskull. Only a few are still alive since most of them went extinct after the vigorous hunting by the water people. They bear an enormous grudge against every living thing, and will kill anything the come close to. There is one known to live in the deepest part of the water land wastelands.
The four eyed frogs. They are the main monsters living across the water land and wasteland. They often appear in huge groups, and are known to trample buldings and sometimes whole villages. If really hungry they will try to feed on humanoid creatures.
The ice dragon, guardian of the water land's ancient library.