âThalassophobia’ is quite a complicated word for something pretty simple. It means âfear of the ocean.’ Lots of people have this fear – and for a good reason, too! There are so many unexplained and strange things lurking beneath the waves that are sure to make the hairs stand up on the back of your neck. Sometimes, it is the creatures underneath the water that make people feel afraid. Other times, the remains of human activity – like shipwrecks – give people the chills. And then, occasionally, it is the sheer nothingness that terrifies us! Here are a few photos that will let you know for sure if you have thalassophobia. Some of them are so scary that they are guaranteed to instill this fear in you even if you don’t have it!