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The Grand Line is an ocean where the majority of the plot takes place in One Piece.


The Grand Line is the ocean current that is surrounded by the Calm Belts and follows an imaginary line that runs from north-west to south-east across the middle of the world and perpendicular to the Red Line. The Red Line is a vast continent that circles the globe from north-east to south-west.[1] These two lines divide the rest of the Blue Sea into the Blues: North Blue, East Blue, West Blue, and South Blue.[2]

This stretch of ocean is said to be the most dangerous place in the world, and is commonly referred to as the Pirates' Graveyard by people from the four Blues because of this reputation. Those few pirate crews that make it to the second half of the Grand Line, known as "the New World", refer to the first half as "Paradise", showing it is all relative. Most believe that it is impossible to safely leave the Grand Line save at its beginning and end. However, the World Government regularly sends ships across the Calm Belts by coating their hulls with Seastone, rendering them invisible to the Sea Kings.[3] The Grand Line is placed similarly to the equator. In fact the main importance of the Grand Line is that it is the only way to circumnavigate the globe. The Grand Line along with the Red Line are what separate the 4 Blues and as such are key to worldwide trade and travel in that the Lines are placed along the pathes between the Blues. This makes them valuable routes of travel and obstacles for both pirates and civilians.

Despite the reputation of the Grand Line being dangerous and chaotic, many normal people manage a living on individual islands regardless, having adapted to their home land. This indicates that it is actually traveling within the Line itself that is dangerous, as it virtually guarantees facing unpredictable climates and dangerous wildlife. However, there are also several islands, or portions of the islands, which are considered dangerous in their own right, and thus, they are either uninhabited or the citizens have taken precaution to the threat.

Calm BeltEdit

Main article: Calm Belt
Calm Belt Infobox

A picture showing how the Calm Belts surround the Grand Line

To the north and south of the Grand Line are strips of ocean known as the "Calm Belts". The true entrance to Grand Line is usually marred by storms; the waters of the Calm Belts remain static year round, and there are virtually no winds or waves (this makes it difficult to cross without propulsion). Extremely large sea monsters called Sea Kings live in the Calm Belts; in fact, the monsters found in the Calm Belts are the largest shown thus far in all of One Piece. The combination of no currents, no wind, and the presence of the Sea Kings makes these belts perfect barriers to any traveler trying to directly go into the Grand Line.[4]

Without using Seastone-lined ships (which are concealed from the Sea Kings to a certain degree) and some propulsion, the Grand Line can only be accessed at two points on the Red Line: Reverse Mountain[5] and the Holy Land of Mariejois. The first is where the four major currents of the Blues merge together to form the Grand Line, while the second is the site of the World Government.


The Grand Line is divided by the Red Line into two halves. The first half, stretching from Reverse Mountain to the polar opposite point of the Red Line, is known as "Paradise". The second half, which starts beyond the second Red Line point to the backside of Reverse Mountain, is known as the "New World".[6][7]


Main article: Paradise

The first half of the Grand Line is known as Paradise (楽園(パラダイス) Paradaisu?) to those who have been to the New World. It lies between East Blue and South Blue. While the Grand Line is a dangerous place, the first half is known as such in comparison to the more terrifying dangers present in the New World.[6] This was first mentioned when Luffy remembered Zeff calling the Grand Line a paradise and another time when the pirates wanted to go back to Paradise in the New World.

New WorldEdit

Main article: New World

The New World (新世界 Shinsekai?) is the second half of the Grand Line. It lies between North Blue and West Blue. This half has not been fully explored, except by the Pirate King, Gol D. Roger, himself. This area is also where the Yonko reside.[7][8]


Main article: Island Climatic Types

The weather is unusual on the Grand Line. The currents and weather are extremely volatile, as they can change in an instant; this includes water spouts, storms, blizzards, and other such things.[9] Islands and the surrounding waters are the only areas where weather and currents are stabilized in a predictable manner. The reason for this is that islands on the Grand Line fall into four basic categories: Winter, Spring, Summer, and Autumn. These types of islands each have four seasons of their own, giving the Grand Line a total of 16 different seasons.[10] There are also cyclones that seem to appear quickly and suddenly. Although being remarked as unpredictable, Nami was able to sense it coming even in a fevered state.[11]


Normal compasses do not work on the Grand Line because of the nature of its magnetic fields. In order to navigate the Grand Line, a special compass called a 'Log Pose' must be used. The Log Pose works by locking on to one island's magnetic field and then locking on to another island's magnetic field. The Log Pose can do this for a total of seven different routes that diverge from Reverse Mountain and travel east before merging again to an island, which is not Raftel. The time for a pose to set depends on the island. One island may take from a few hours to a few days to set to the next island,[12] while another can take a year to set.[13] This process can be bypassed by obtaining an Eternal Pose. This version of the Log Pose is permanently set to a specific island and can never change. This makes it easier for a crew to get to a specific island rather than going through a trail of islands.[14]

As also noted at Water 7, small sea vessels such as caravels do not make it particularly far in the Grand Line and it was a surprise that the Going Merry had. Despite a crew's best efforts it is difficult to keep a ship in good condition and avoid getting it battered by the Grand Line's natural hazards. Only good quality ships with knowledgeable crews stand a chance of traversing it safely.

Places in the Grand LineEdit

See also the associated category: Grand Line Locations.


Paradise Infobox

The multiple paths within the first half of the Grand Line.

Red LineEdit

New WorldEdit


  • Most places in the Grand Line are known in the other oceans through the book "Brag Men", but are considered fairy tales to those who have never been there.[21]


  1. One Piece Manga — Vol. 1 Chapter 2, Nami explains what the Grand Line and the Red Line are.
  2. One Piece Manga and Anime — Vol. 6 Chapter 51 and Episode 3, The geography of the One Piece world is explained.
  3. One Piece Manga and Anime — Vol. 45 Chapter 433 and Episode 315, Coby explains to Luffy how Marine warships cross the Grand Line.
  4. One Piece Manga and Anime — Vol. 12 Chapter 101 and Episode 55, GrandLine4
  5. 6.0 6.1 One Piece Manga — Vol. 60 Chapter 594, The first half of the Grand Line is referred to as Paradise.
  6. 7.0 7.1 One Piece Manga and Anime — Vol. 45 Chapter 433 and Episode 315, Coby reveals the name of the later half of the Grand Line.
  7. One Piece Manga and Anime — Vol. 45 Chapter 433 and Episode 314, Garp explains who the Yonko are.
  8. One Piece Manga and Anime — Vol. 12 Chapter 106 and Episode 64, Nami says that the "usual" navigational skills are useless in Grand Line
  9. One Piece Manga and Anime — Vol. 15 Chapter 132 and Episode 79, Vivi explains about the different seasons each each island can have in Grand Line.
  10. One Piece Manga and Anime — Vol. 15 Chapter 130 and Episode 78, Vivi talks about how unpredictable the weather is in Grand Line.
  11. One Piece Manga and Anime — Vol. 12 Chapter 106 and Episode 64, Nami mentions the time a Log Pose roughly takes to memorize an island's magnetic field.
  12. One Piece Manga and Anime — Vol. 13 Chapter 116 and Episode 71, Brogy reveals that it takes one year for a Log Pose to adapt to Little Garden's magnetic field.
  13. One Piece Manga and Anime — Vol. 13 Chapter 114 and Episode 67, Robin explains how the Eternal Pose works.
  14. One Piece Manga and Anime — Vol. 54 Chapter 523 and Episode 418, Franky is revealed to have been sent to Karakuri.
  15. One Piece Manga and Anime — Vol. 54 Chapter 523 and Episode 419, Sanji is chased by okamas in Momoiro Island.
  16. One Piece Manga and Anime — Vol. 54 Chapter 524 and Episode 420, Usopp lands on one of the islands in the Boin Archipelago.
  17. One Piece Manga and Anime — Vol. 54 Chapter 524 and Episode 421, Brook arrives in Harahetternia and is mistaken for Satan by some cultists.
  18. One Piece Manga and Anime — Vol. 54 Chapter 524 and Episode 421, Zoro and Perona are revealed to have been sent to Kuraigana.
  19. One Piece Manga and Anime — Vol. 0 Chapter 0 and Episode 0, The first appearance of Merveille for Shiki's plan.
  20. SBS One Piece MangaVol. 42, Brag Men mentioned by Oda.

Site NavigationEdit

[v · e · ?]
Islands and Locations
Blue Sea
East Blue: Dawn Island (Foosha Village  •  Mt. Colubo  •  Midway Forest  •  Gray Terminal  •  Goa Kingdom)  •  Goat Island  •  Shells Town  •  Shimotsuki Village  •  Organ Islands (Orange Town)  •  Island of Rare Animals  •  Gecko Islands (Syrup Village)  •  Baratie  •  Conomi Islands (Arlong Park  •  Cocoyasi Village  •  Gosa Village)  •  Loguetown  •  Kumate's Island  •  Mirrorball Island  •  Tequila Wolf  •  Cozia  •  Sixis
North Blue: Germa Kingdom   •  Lvneel  •  Spider Miles  •  Rakesh  •  Flevance  •  Minion Island  •  Rubeck Island  •  Swallow Island  •  Notice
West Blue: Ilusia  •  Ohara  •  Thriller Bark   •  Toroa  •  Las Camp  •  Kano Country
South Blue: Briss Kingdom  •  Karate Island  •  Centaurea  •  Torino Kingdom  •  Baterilla  •  Black Drum Kingdom
Grand Line
Paradise: Cactus Island (Whiskey Peak)  •  Nanimonai Island  •  Little Garden  •  Kyuka Island  •  Drum Island (Drum Castle  •  Drum Rockies  •  Robelle  •  Gyasta  •  Cocoa Weed  •  Bighorn)  •  Alabasta (Alubarna  •  Yuba  •  Rainbase  •  Nanohana  •  Erumalu  •  Spiders Cafe  •  Katorea  •  Tamarisk  •  Suiren  •  Tomb of the Kings  •  Sandora Desert  •  Sandora River)  •  Renaisse  •  Lulusia Kingdom  •  Jaya (Mock Town)  •  Long Ring Long Land  •  Ukkari Hot-Spring Island  •  Water 7 (Dock 1  •  Franky House  •  Galley-La HQ)  •  Scrap Island  •  St. Poplar  •  San Faldo  •  Pucci  •  Enies Lobby  •  Banaro Island  •  Florian Triangle  •  Thriller Bark  •  Sabaody Archipelago (Sabaody Park  •  Antonio's Graman  •  Human Auctioning House  •  Sabao Dome  •  Shakky's Rip-off Bar)  •  Karakuri Island  •  Momoiro Island  •  Boin Archipelago  •  Namakura Island  •  Kuraigana Island  •  Kenzan Island  •  Merveille  •  Marineford  •  Sea Floor (Underworld of the Sea  •  Goldfish Empire  •  Headband Catfish Village)  •  Foolshout Island
New World: Raftel  •  Elbaf  •  Yukiryu Island  •  Wano Country (Kuri  •  Yo )  •  Edd War  •  Foodvalten  •  New Marineford  •  Totto Land (Whole Cake Island  •  Cacao Island  •  Jam Island  •  Nuts Island  •  Cheese Island  •  Biscuits Island  •  Candy Island  •  Milk Island  •  Flavor Island  •  Liqueur Island  •  Komugi Island  •  Poripori Island  •  Yakigashi Island  •  Funwari Island  •  Jelly Island  •  Milence Island  •  Rokumitsu Island  •  Ice Island  •  Fruits Island  •  Cutlery Island)  •  Punk Hazard  •  Raijin Island  •  Risky Red Island  •  Mystoria Island  •  Dressrosa (Corrida Colosseum  •  Acacia  •  Sebio  •  Carta  •  Primula  •  Flower Hill)  •  Green Bit (Tontatta Kingdom)  •  Zou (Mokomo Dukedom)  •  Prodence Kingdom  •  Mogaro Kingdom  •  Jewel Ice Sheet  •  Doerena Kingdom  •  Majiatsuka Kingdom  •  Applenine Island  •  Karai Bari Island  •  Broc Coli Island  •  Germa Kingdom
Unknown: Baltigo
Unknown Location: Vira  •  Emerald City  •  Pirate Island  •  Great Kingdom  •  Land of Ice  •  Nakrowa  •  Rommel Kingdom  •  Bourgeois Kingdom  •  Standing Kingdom
Sky Islands: Skypiea (Milky Road  •  Upper Yard  •  Angel Island  •  White Sea  •  White-White Sea)  •  Birka  •  Weatheria  •  Ballon Terminal
Calm Belt: Amazon Lily  •  Tarai Current (Marineford  •  Enies Lobby  •  Impel Down)  •  Rusukaina
Red Line: Reverse Mountain  •  Twin Cape  •  Mariejois  •  Fishman Island (Ryugu Kingdom)
Space: Moon
Misc.: Mirro-World
Anime Only: East Blue: Ocean's Naval  •  Warship Island  •  Lost Island  •  Paradise: Papanapple Island  •  Fireworks Island  •  Goat Island  •  Ruluka  •  Rainbow Mist  •  Navarone Island  •  Hyokaido  •  Spa Island  •  Little East Blue  •  Eight Nine Island  •  New World: Maubeugemour Sea  •  Hand Island  •  Nebulandia  •  Silver Mine  •  Alchemi  •  Fron Island
Movie Only: East Blue: Gold Island  •  Clockwork Island  •  Paradise: Crown Island  •  Hannabal  •  Navarone Island  •  Elena  •  Partia  •  Asuka Island  •  Omatsuri Island  •  Mecha Island  •  Kilauea  •  New World: Endpoints (Firs Island  •  Secon Island  •  Piriodo)  •  Dock Island  •  Gran Tesoro
Other: Samba Island  •  Trans Town