Windjammer: #Windjammer ~ Cthulhu is a monstrous entity who lies "dead but dreaming" in the city of R'lyeh, a place of non-Euclidean madness presently (and mercifully) sunken below the depths of the Pacific Ocean.
Charybdis- Greek myth: a huge female sea monster. She was the daughter of Poseidon and Gaia. She was extremely fat and to satisfy her hunger she stole the cattle of Heracles. Enraged, zeus cursed her, and turned her into a sea monster. She now sucks in massive amounts of water three times a day creating huge whirlpools.
Sea monster accounts are found in virtually all cultures that have contact with the sea. For example, Avienus relates of Carthaginian explorer Himilco's voyage "...there monsters of the deep, and beasts swim amid the slow and sluggishly crawling ships." (lines 117-29 of Ora Maritima).