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The Red Line (literally translated as "Continent of Red Earth") is a long continent that stretches across the entire world, from North to South, along the equivalent of Earth's Prime Meridian.


Grand Line Infobox
The position of the Red Line.
Red Line islands
Red Line islands.
The Red Line is like a group of islands connected together. The Red Line that crosses the Grand Line has its own Summer, Winter, Spring and Fall "islands".[1]

The Red Line is said to be 10,000 meters deep from ocean level to Fishman Island.[2] At the same time, it is high enough above sea level to be considered impassable, and it is indestructible,[3] meaning that it is almost impossible to pass over it or under it without using either of the entrances. Fisher Tiger, however, managed to climb up the entire Red Line with his bare hands to attack Mary Geoise.[4] The whole of Germa 66 was also able to climb over the Red Line, from North Blue into East Blue, using its amphibious ships.[5]

While the continent appears impossible for any boat wishing to cross between the seas or to certain sections of the Grand Line, there are certain pass points at which a ship can cross between the Blues: going up the waterways of Reverse Mountain (typically used by pirates to enter the Grand Line), gaining government permission from the holy government land of Mary Geoise, or submerging into an underwater passageway around Fishman Island that links directly between Paradise and the New World.

Notable Places

Mary Geoise

{{Main|Mary Geoise}

}The Red Line bears the world capital, Mary Geoise, and it is directly over Fishman Island, which is located in an underwater passageway.

Red Port

Main article: Red Port
Red Port Infobox

The Red Port on Paradise.

At either side of the Grand Line, at the base of the Red Line, directly below Mary Geoise, is the Red Port, which has special lifts called Bondolas (ボンドラ Bondora?) that reach Marie Geoise and allow those who were granted access to cross the Red Line.


  1. One Piece Manga — Vol. 62 Chapter 604, Nami explains the islands that form the Red Line.
  2. One Piece Manga and Anime — Vol. 51 Chapter 496 and Episode 390, Hachi explains the depth of the Red Line.
  3. One Piece Manga and Anime — Vol. 12 Chapter 104 and Episode 63, Laboon ramming the Red Line in futility.
  4. One Piece Manga and Anime — Vol. 53 Chapter 521 and Episode 415, Boa Hancock talks about Fisher Tiger.
  5. One Piece Manga — Vol. 84 Chapter 841, Germa 66 is shown crossing the Red Line.

Site Navigation

[v · e · ?]
Red Line
Locations: Reverse Mountain (Twin Cape)  •  Mary Geoise (Pangaea Castle)  •  Fish-Man Island (Ryugu Kingdom)  •  Red Port
[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
Related Articles
Locations: List of Locations
Offworld: Moon  •  Mirro-World
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