Blue Sea

The Blue Sea is a huge body of water spanning across the entire world of One Piece. Nearly everything in the world can be found on the Sea, save for sky islands like Skypiea and Weatheria.

The Sea itself is divided into four oceans by the Grand Line and the Red Line:
 * North Blue is the northernmost ocean of the Blue Sea and is the birthplace of such figures as Sanji of the Straw Hat Pirates, Trafalgar Law of the Heart Pirates, and the famous explorer, Montblanc Noland.


 * South Blue is the southernmost ocean of the Blue Sea and the ocean from which the St. Bliss sailed on its ill-fated voyage to Skypiea. Franky, Eustass Kid, Inazuma, and Portgas D. Ace all hail from South Blue.


 * East Blue is the easternmost ocean of the Blue Sea and the birthplace of Pirate King Gol D. Roger, Monkey D. Luffy, Monkey D. Dragon, and Roronoa Zoro. Notable islands in East Blue include Loguetown, Dawn Island, and Shells Town.


 * West Blue is the westernmost ocean of the Blue Sea and once contained the island of Ohara prior to its destruction by the World Government. Notable figures from West Blue include Yonkou Shanks, Nico Robin, Brook, and doctor Hogback.

The main judiciary system of the Blue Sea is the World Government which currently exercises control over 170 countries, though the balance of power is often tested by the many pirate crews sailing the oceans.

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