Sword Mariners are enemies in Kirby's Epic Yarn. They are one of the four types of Mariner enemies in the game (the others being Spear Mariners, Cannon Mariners, and Whistle Mariners). However, Sword Mariners are more common than the other three. Sword Mariners are rectangular creatures with a blue and white body, a blue and white eye with black pupils, white arms and feet, and a black smile. They wield a golden sword. Sword Mariners, along with the other types of Mariners only make an appearance in Boom Boatyard of Water Land. Sword Mariners can be found at first walking around, however, when they spot Kirby and Prince Fluff, they will charge toward them while recklessly swinging their swords. If one of the heroes gets hit by the Sword Mariner's attack, they will take damage and lose Beads. Sword Mariners can be wrapped up into yarn balls and thrown to be defeated. A Sword Soldier is the more common "brother" of Sword Mariners. If one jumps on a Sword Mariner's head, it will look confused.