A ball and chain was a physical restraint device historically applied to prisoners, primarily in the British Empire and its former colonies, from the 17th century until as late as the mid-20th century. The weight of the ball makes it difficult for the restrained person to walk.
Piracy is typically an act of robbery or criminal violence at sea. The term can include acts committed on land, in the air, or in other major bodies of water or on a shore. A ball and chain could be a real possibility for a pirate, if they were caught.
A ball and chain believed to date to the 17th century was found in the United Kingdom in 2009. It consists of a sphere of high-grade iron approximately 15 centimetres (5.9 in) across and weighing around 8 kilograms (18 lb). The chain is of some 90 centimetres (35 in) in length and terminates in a leg iron or shackle. -Wikipedia
Help the schackled pirate to dry land in 7 steps. Change only one letter in each line (the space with the star below it) below to solve the coordinates above.
N49 N N . D D L
W097 A S . C D E