Ocean Clouds

The Ocean Clouds (海雲, Umigumo) are oceans made entirely of clouds. These clouds, however, are not normal clouds. There are two kind of them, Sea Clouds and Island Clouds. Sea Clouds are similar to water, which means that you can sail on it if you´re not to heavy to sink through it, or travel through using Waver or Jet Ski. But they are lighter than water, and as such, things that drop into it sink faster than in normal water. However, they are still considered to be a ocean, and as such, can affect Devil Fruit users like a regular body of water would. Island Clouds are dense enough to carry all kinds of things. All islands located in the sky, except Upper Yard, are composed of them.

There are different ways to get to the Sky Ocean from the Blue Sea. The only way that has been shown so far is the unorthodox and dangerous way in which the sailors have to take a Knock-Up Stream. In the Sky Ocean there are two known seas, the White Sea and the White White Sea.

First Appearance: Chapter 237; Episode 153

The White Sea
The White Sea (白海, Haku Kai) is the lowest part of sky ocean, located 7000 meters above the Blue Sea, comprised of Sea Clouds. It is the base for everything on Skypiea. It also has strange, rubbery clouds that bounce objects off of them and can be used as trampolines for those who are creative.

First Appearance: Chapter 237; Episode 153

The Heaven's Gate
Heaven's Gate (天国の門, Tengoku no Mon) is the entrance to Skypiea, located on the White Sea, where visitors must pay 1,000,000,000 extols per person to enter. Amazon, the gate-keeper resides here with her Vision Dial-powered camera, collecting entrance immigration fees, and immigration for those who are leaving. She is generally unable to understand the events around her, as she lets people in without collecting fees, but not warning them they will become criminals. When everyone was evacuating Angel Island, she attempted to take images of them all, not realizing that Angel Island was about to be destroyed. Many outsiders become criminals for not paying the fee, because Amazon fails to explain Extol, the currency of Skypiea.

A clouds-made road starting here connects the White Sea to the White-White Sea. After going past Amazon, a giant lobster-like creature will grasp the immigrant's ship and lift it along a smaller version of the Milky River. Finally the guests will arrive in Skypiea.

First Appearance: Chapter 238; Episode 153

The White-White Sea
The White-White Sea (白々海, Haku Haku Kai) is the upper part of sky ocean. It is located 10,000 meters above the Blue Sea. Skypiea (among other sky islands) is located here.

First Appearance: Chapter 239; Episode 154