The traces of much of human history - and that which preceded it - lie beneath the ocean surface. This is fertile ground for speculation, even myth-making, but also a topic on which geologists and climatologists have increasingly focused on in recent decades. This is the first book to present the science of submergence in a popular format. Patrick Nunn sifts the fact from the fiction, using the most up-to-date research to work out which submerged places may have actually existed versus those that probably only exist in myth.