When is a boat not a ship? Was Captain Kidd truly a pirate? What was the deadliest disaster at sea? Is the Bermuda Triangle dangerous? Are mermaids real? What does 'three sheets to the wind' mean? How do you tie a clove hitch knot? Ahoy! Want to learn the ropes of the maritime world? This light-hearted, illustrated miscellany is packed full of hundreds of amazing facts from the experts at the National Maritime Museum and Cutty Sark to put the wind in your sails. All aboard, it's time to discover the world beyond the shore.