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


Yes... The Grand Line... I've seen pirates who've managed to make it back from that voyage... They're broken men, almost zombies! You can tell just by looking at 'em... Whether pirates or monsters... They've seen terrible things. None will speak of it... But the sight of em's proof enough... The Grand Line is a place of horror!
— Gaimon[3]

The Grand Line is the ocean current[4] that is surrounded by the Calm Belts[5] 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.[6][7] These two lines divide the rest of the Blue Sea into the Blues: North Blue, East Blue, West Blue, and South Blue.[8]

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.[3] Those few pirate crews that make it to the second half of the Grand Line, known as "the New World",[9] refer to the first half as "Paradise", showing it is all relative.[10] 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.[11] 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.[6] The Grand Line along with the Red Line are what separate the 4 Blues (?)[8] 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.[citation needed]

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.[citation needed]

Calm BeltEdit

Further information: 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". Where 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 (making it difficult to cross without propulsion). Extremely large sea monsters called Sea Kings dominate the Calm Belts;[12] 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.[citation needed]

Without using Seastone-lined ships (which are concealed from the Sea Kings to a certain degree) and some propulsion,[11] the Grand Line can only be accessed at two points on the Red Line: Reverse Mountain[13] and the Holy Land of Mary Geoise.[4] The first is where the four major currents of the Blues merge together to form the Grand Line,[14] while the second is the site of the World Government.[citation needed]


The Grand Line is divided by the Red Line into two halves.[4] The first half, stretching from Reverse Mountain to the polar opposite point of the Red Line,[citation needed] is known as "Paradise".[10] The second half, which starts beyond the second Red Line point to the backside of Reverse Mountain,[citation needed] is known as the "New World".[9]


Further information: 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.[10] It lies between East Blue and South Blue.[8] While the Grand Line is a dangerous place,[3] the first half is known as such in comparison to the more terrifying dangers present in the New World.[10] This was first mentioned when Luffy remembered Zeff calling the Grand Line a paradise[15] and another time when the pirates wanted to go back to Paradise in the New World.[10]

New WorldEdit

Further information: New World

The New World (新世界 Shinsekai?) is the second half of the Grand Line.[9] It lies between North Blue and West Blue.[8] This half has not been fully explored, except by the Pirate King, Gol D. Roger, himself.[9] This area is also where the Yonko reside, each holding their own respective territory.[16]


Further information: Island Climatic Types
On the Grand Line, you can't trust the wind, the sky, the waves, or even the clouds. Everything is treacherous. The only thing you can count on is the Log Pose!
— Miss Wednesday[17]

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.[18] 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: Summer, Spring, Autumn, and Winter. These types of islands each have four seasons of their own, giving the Grand Line a total of 16 different seasons.[19] There are also cyclones that seem to appear quickly and suddenly. Although being remarked as unpredictable,[20] Nami was able to sense it coming even in a fevered state.[21]


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 Laugh Tale.[citation needed] 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,[22] while another can take a year to set.[23] 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.[24]

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.[citation needed]

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

Exact Location UnknownEdit

Unnamed LocationsEdit

First Appearance Descriptions Events Image
Chapter 964 An Island with round trees and a large castle. Islands the Whitebeard Pirates visited during their travels after leaving Wano. Oden's Travels Islands 2
An Island with strong snowstorms.
Oden's Travels Islands 3
An Island with strong intense burning sun.
Oden's Travels Islands 4
An Island with large koala like creatures.
Oden's Travels Islands 5
An Island with strong snowstorms.
Oden's Travels Islands 6
An Island with rocks big enough to hide a giant. Oden's Travels Islands 7
Chapter 965 A snowy island with large mushroom. After acquiring some treasure, Whitebeard decided to split his crew into divisions. Oden's Travels Islands 8
An island with trees with strange fruits. An island the Whitebeard Pirates visited during their travels after leaving Wano. Oden's Travels Islands 9
An island with large palm trees. An island the Roger Pirates and Whitebeard Pirates visited and fought on, where Oden decided to join Roger for a year. Oden's Travels Islands 10


  • 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.[31]


  1. One Piece Manga and Anime — Vol. 1 Chapter 2 (p. 23) and Episode 1, Koby, disbelieving, exclaims that Luffy's goal of finding One Piece means entering the Grand Line.
  2. One Piece Manga and Anime — Vol. 6 Chapter 48 (p. 18-19) and Episode 23, Gin recounts, in a brief flashback, how the Krieg Pirates had been completely decimated by the Grand Line and one of its most notorious inhabitants.
  3. 3.0 3.1 3.2 One Piece Manga and Anime — Vol. 3 Chapter 22 (p. 15-16) and Episode 18.
  4. 4.0 4.1 4.2 One Piece Manga — Vol. 3 Chapter 22 (p. 15).
  5. One Piece Manga and Anime — Vol. 12 Chapter 101 (p. 7) and Episode 55.
  6. 6.0 6.1 One Piece Manga — Vol. 3 Chapter 22 (p. 14-15), Nami explains the Grand Line and the Red Line to Luffy and Gaimon.
  7. One Piece Anime — Episode 3, The anime moves this explanation to the end of the Romance Dawn Arc, with Koby supplying it to Luffy (as well as Zoro and Rika).
  8. 8.0 8.1 8.2 8.3 One Piece Manga and Anime — Vol. 6 Chapter 51 (p. 4) and Episode 24, Mihawk explains the layout of the Four Blues.
  9. 9.0 9.1 9.2 9.3 One Piece Manga and Anime — Vol. 45 Chapter 433 (p. 7-8) and Episode 315, Koby reveals the name of the later half of the Grand Line.
  10. 10.0 10.1 10.2 10.3 10.4 One Piece Manga and Anime — Vol. 60 Chapter 594 (p. 19) and Episode 511, The first half of the Grand Line is referred to as Paradise.
  11. 11.0 11.1 One Piece Manga and Anime — Vol. 45 Chapter 433 (p. 4-5) and Episode 315, Koby explains to Luffy how Marine warships cross the Grand Line.
  12. One Piece Manga and Anime — Vol. 12 Chapter 101 (p. 5-11) and Episode 55, Nami explains why it is difficult to sail directly to the Grand Line.
  13. One Piece Manga and Anime — Vol. 12 Chapter 101 (p. 2-3) and Episode 61.
  14. One Piece Manga and Anime — Vol. 12 Chapter 101 (p. 12-13) and Episode 61.
  15. One Piece Manga and Anime — Vol. 8 Chapter 69 (p. 3) and Episode 31.
  16. One Piece Manga and Anime — Vol. 45 Chapter 432 (p. 7) and Episode 314, Garp explains who the Yonko are.
  17. One Piece Manga and Anime — Vol. 12 Chapter 106 (p. 6) and Episode 64.
  18. One Piece Manga and Anime — Vol. 12 Chapter 106 (p. 2-8) and Episode 64, Nami says that the "usual" navigational skills are useless in Grand Line
  19. One Piece Manga and Anime — Vol. 15 Chapter 132 (p. 6-7) and Episode 79, Vivi explains about the different seasons each each island can have in Grand Line.
  20. One Piece Manga and Anime — Vol. 15 Chapter 130 (p. 16-18) and Episode 79, Vivi talks about how unpredictable the weather is in Grand Line.
  21. One Piece Manga and Anime — Vol. 15 Chapter 130 (p. 11-13) and Episode 79.
  22. One Piece Manga and Anime — Vol. 12 Chapter 106 (p. 14) and Episode 64, Nami mentions the time a Log Pose roughly takes to memorize an island's magnetic field.
  23. One Piece Manga and Anime — Vol. 13 Chapter 116 (p. 13) and Episode 71, Brogy reveals that it takes one year for a Log Pose to adapt to Little Garden's magnetic field.
  24. One Piece Manga and Anime — Vol. 13 Chapter 114 (p. 15) and Episode 67, Robin explains how the Eternal Pose works.
  25. One Piece Manga and Anime — Vol. 54 Chapter 523 and Episode 418, Franky is revealed to have been sent to Karakuri.
  26. One Piece Manga and Anime — Vol. 54 Chapter 523 and Episode 419, Sanji is chased by okamas in Momoiro Island.
  27. One Piece Manga and Anime — Vol. 54 Chapter 524 and Episode 420, Usopp lands on one of the islands in the Boin Archipelago.
  28. One Piece Manga and Anime — Vol. 54 Chapter 524 and Episode 421, Brook arrives in Harahetternia and is mistaken for Satan by some cultists.
  29. One Piece Manga and Anime — Vol. 54 Chapter 524 and Episode 421, Zoro and Perona are revealed to have been sent to Kuraigana.
  30. One Piece Manga and Anime — Vol. 0 Chapter 0 and Episode 0, The first appearance of Merveille for Shiki's plan.
  31. SBS One Piece Manga — Vol. 42 (p. 186), Brag Men mentioned by Oda.

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Grand Line
Locations: Island Climatic Types  •  Paradise (Sea Train Route  •  Tarai Current  •  Florian Triangle  •  Hyokaido )  •  New World (Edd War  •  Hot-Hot Sea  •  Endpoints   •  Maubeugemour Sea )  •  Sky Islands
[v · e · ?]
Continent: Red Line
Four Blues: East Blue  •  North Blue  •  South Blue  •  West Blue
Grand Line: Paradise  •  New World  •  Calm Belt
Others: White Sea  •  Sea Floor  •  All Blue  •  Sea Currents
Related Articles
Locations: List of Locations
Offworld: Moon  •  Mirro-World
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