

My question is two-fold:

  1. How did Trafalgar Law and the other "Worst Generation" pirates get to Marineford? I thought you had to go through the tri-currents? Or is that the tri-currents are just a faster way but you can come any other way since Marineford is not in the calm belt?

  2. How did Trafalgar Law leave the tri-currents? This especially puzzled me. I am thinking now that it might be because of their submarine. My assumption is that it can move freely, does not depend on currents, but I am not sure. 

I would appreciate answers that are based on more than just speculation.


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one-piece
How did Trafalgar Law get to and leave Marineford?


  1. Ya they took the current because they wouldn't have made it in time otherwise, there's no indication that you can't get there any other way.

  2. Considering white beard's entire fleet got there underwater I assume that you're able to maneuver freely.


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Tri Currents has nothing to do with getting to and leaving Marine Ford. It
only helps if you are trying to go to and fro from Ennis Lobby, Impel Down or
Marine Ford. It does not mean that this is the only way to get to Marine Ford.
It is just one of the way.

Tri currents is a marine exclusive current between Impel Down, Ennis Lobby and
Marine Ford. Using this way will increase the speed of travel between these
places.

You can get to Marine Ford from Sabaody archipelago in half an hour without
using the currents. Marines and Celestial Dragons travel regularly between the
two.

Only problems for Pirates and other criminals to use this way would be the
heavy patrols. But they can get past these patrols by doing what WB, Law did
and come underwater. Or by doing what Luffy did(when he rang the Ox Bell) by
hijacking a marine ship, you can get there.

Since Law never entered the currents, he never had to leave it.

On a side note, Luffy, Jinbei, Crocodile, and Co would have been trapped the
Tri Currents if not for Black Beard, when they escaped Impel Down through the
Tri Currents.


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The Heart Pirates (Law’s crew) travel by submarine, rather than normal ship.
Using their sub, they were either able to pass below the Gates of Justice
(this is my presumption) or travel under/around the currents normally blocking
passage to Marineford.

They left the same way, staying a fair distance from the actual island and
fighting. Kizaru attempted to stop them, firing beams into the ocean as they
dove, but the sub made it out of the area (we can assume they left the same
way they entered).


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2020-02-22T11:17:24.097
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So, to add a bit of clarification to all the answers.

The **Tri-current** (Tarai Current) are a natural whirlpool at the
intersection of the Calm Belt and Red Line. The WG build three facilities
around the current ( _Impel Down - MarineFord - Enies Lobby_ ), making use of
the current power to fast travel between the three. The **currents work also
underwater** as per natural ocean currents, but probably have different speeds
and power at different underwater levels.

Here's a pictures depicting the wihrlpool:

[![enter image description
here](https://i.stack.imgur.com/FQak3.png)](https://i.stack.imgur.com/FQak3.png)

The _Gates of Justice_ are 3 such gates placed at the "corners" of the current
from where you can enter or access it. This is the only way for normal ships
(floating ships) to get inside the current. The whole phenomenon doesn't quite
follow natural physics so one shouldn't try to find natural ways of how to
enter/exit it.

Also, you can't get in from the outside without using the gates as the outside
currents will push you away from the whirlpool and vice-versa from the inside
where the whirlpool will keep pushing you into a circle.

**Now on how Law & others managed to get there.**

One possibility is that they entered the current by going underwater through
the Gates of Justice **while they were openend**. After the gates close, the
outside currents will keep you from entering, even underwater. That is why
Bepo said to hurry as the gates are closing, so they could catch the
overflowing current to the outside, while submerged. The same applies to WB's
ship who was also underwater.

Another possibility for WB's ship to enter is if he used the _Gura Gura no Mi_
's powers to temporarily divert the currents and enter from any side of the
whirlpool. Law still had to enter from the gates nontheless.

And even another posibility could be that they entered MarineFord by bypassing
the big current, from Sabaody Arch. for exemple, and managed to get around the
marines defence of those waters. They probably left through the Gate of
Justice to make for a quick escape rather then going back and risking to get
captured.

More on [One Piece fandom](https://onepiece.fandom.com/wiki/Tarai_Current)
about the Tarai Current.


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