1. Island name: Cigu Island/Tietong Island, special title: island with developed medical skills, island with long-term snow, geographical location: the Great Channel, island country: Cigu Kingdom (later Renamed "Sakura Kingdom").
2. Island name: Little Garden Island, special title: Ancient Island, Giant’s Little Garden, geographical location: Great Channel, island country: unknown.
3. Island name: Cactus Island, special title: Island that welcomes pirates, geographical location: Great Channel, island country: unknown.
4. Island name: Shengting Island, special title: Desert Island, geographical location: Great Channel, island country: Alabasta.
5. Island name: Angel Island, special title: unknown, geographical location: Great Channel (above), island country: unknown.
6. Island name: Island of Gods, special title: Sanctuary, geographical location: Great Channel (above), island country: unknown.
7. Island name: Gaya Island, special title: unknown, geographical location: Great Channel, island country: unknown.
8. Island name: Long Chain Island/Long Ring Island, special title: unknown, geographical location: Great Channel, island country: unknown.
9. Island name: Judiciary Island, special title: Island that never sleeps, geographical location: Great Channel, island country: unknown.
10. Island name: Banaro Island, special title: unknown, geographical location: Great Channel, island country: unknown.
11. Island name: Ghost Island, special title: Terrifying Three-masted Sailing Ship, geographical location: Great Channel, island country: unknown.
12. Island name: Chambord Islands, special title: Islands of Flying Bubbles, geographical location: Great Channel, island country: unknown.
13. Island name: unknown (let’s call it “isolated island” or “precious beast island” for the time being), special title: unknown, geographical location: East China Sea, island country: unknown.
14. Island name: Amazon Lily Island, special title: Daughter Island, geographical location: Windless Zone (located on both sides of the Great Channel), island country: Nine Snakes Country.
15. Island name: Island of Seven Waters, special title: Water City, geographical location: Great Channel, island country: unknown.
16. Island name: Kraikana Island, special title: unknown, geographical location: Great Channel, island country: Kingdom of Sikeal (now a ruins).
17. Island name: Namacula Island, special title: Island of the Lazy Man, geographical location: Great Channel, island country: Kingdom of Halahitania.
18. Island name: Boeing Islands, special title: Lotus of the Sea, geographical location: Great Channel, island country: unknown.
19. Island name: Dream Island, special title: Peach Paradise, Second Daughter Island, geographical location: Great Channel, island country: Kingdom of Kamabaka/Manman Country.
20. Island name: Island of Giant Birds, special title: Island where birds rule humans>Island of reconciliation between birds and humans, Island of Treasures, geographical location: South China Sea, island country: Terry Kingdom of Nuo.
21. Island name: Visalia Island, special title: Little Sky Island, Weather Island, geographical location: Great Channel (above), island country: unknown.
22. Island name: Mechanical Island, special title: Future Island, geographical location: Great Channel, island country: Balkimoa.
23. Island name: O'Hara Island (disappeared), special title: Archaeological Island, geographical location: West Sea, island country: unknown.
24. Island name: Fishman Island, special title: Undersea Paradise, Sanji's All Blue (joke), location: Great Channel (between "Paradise" and "New World"), island Upper country: Dragon Palace Kingdom.
25. Island name: Punk Hassad Island, special title: Island of Ice and Fire, geographical location: Great Channel (New World), island country: unknown.
26. Island name: Dressrosa Island, special title: unknown, geographical location: Great Channel ("New World"), island country: Dressrosa.
27. Island name: Greenbit Island, special title: unknown, geographical location: Great Channel ("New World"), island country: Dongtata Kingdom.
28. Island name: Treasure Island, special title: unknown, geographical location: New Zealand, island country: unknown.
Extended information:
In the pirate world, the entire sea is divided into four seas: east, west, south and north by the Red Continent and the Grand Route. The "paradise" of the sea area in the first half of the Great Line, the sea area between the East China Sea and the South China Sea, is where newcomers compete fiercely. The "New World" in the sea area in the second half of the Great Line is where one of the three major powers in the world, the "Four Emperors", dominates and is known as "the strongest sea in the world."
In addition, the strip-shaped area on both sides of the great channel is called the "windless zone". There is no air flow or ocean current. It is a permanently calm sea area. The windless zone is the nest of the Neptune species. The ring-shaped continent that is perpendicular to the Great Channel and divides the world's oceans into two parts is called the "Red Continent", so named because of its red soil covering.