In 1872, Hans Christian Andersen was one of the first people to recognize that subsea networks were going to be big. He wrote a children's book to help educate the world about "the serpent beneath the sea." Since then, subsea networks have come a long way. Subsea operators, recognizing the mission critical nature of international communications, pride themselves on the ultra-reliability of their network and the ability of fiber optic cables to span the entire globe and bring all of us a little closer together. This paper will take a deeper look at subsea architecture, its evolution, recent technological advances and industry best practices that promise to dramatically improve return on investment.