How many seamen have sailed the sea, challenging the unknown in the darkest nights? Travelling on boats that, compared to the vastness of the oceans, could be compared to small wooden splinters? Many!! Since the dawn of time, man felt the need to explore the vastness of a world, our Earth, which was mostly unknown; he sailed the seas, the oceans, pursued by fearful stories, stories that spoke of monsters accustomed to swallowing everything and everyone: in one gulp they made boat and sailors disappear! Yet, despite the fears, the man has never given up, and never will give up to challenge unknown horizons, facing the anger of the seas and winds, being tossed by waves that seem insuperable walls. What drives man to these businesses? How to overcome the difficulties of travelling? To challenge the great unknown? Let's read this story and we'll understand.