Here, there be dragons! The deep ocean conjures up deep-seated fears. They call that Thalassophobia. It's real, and it translates to the movies. The Scariest Things enters the life raft and examines ocean-born horror in Episode 182!
The old notification on medieval maps stating "Here there be monsters!" still applies within modern genre film. Many of our greatest, and more than a few of the worst genre films are set at sea. The Scariest Things has a guide for those of you who like a little salt water with your scares.