In addition to battling human enemies you will also encounter giant sea monsters, but these formidable foes can be avoided by only travelling during the day. (gameramble.com)
What we don't think of is the total annihilation of the human race, crumbling traces of humankind under water and giant sea monsters out to kill you. (thexboxhub.com)
However if someone told me that their was a giant sea monster at the bottom of this lake and I could never find it or prove that it exists then I would know for sure that it in fact does not exist. (religion.blogs.cnn.com)