Islands order, Bosses, and more

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The open-world RPG Blox Fruits includes multiple maps called Seas that separate different parts of the game world. Each Sea comprises Islands that can be visited to accept quests, fight boss battles, and acquire resources. Its third major area is called the Third Sea, which includes the following 13 Islands:
- Port Town
- Hydra Island
- Great Tree
- Floating Turtle
- Haunted Castle
- Sea of Treats
- Tiki Outpost
- Castle on the Sea
- Treasure Island
- Kitsune Island
- Mirage Island
- Frozen Dimension
- Prehistoric Island
This guide covers the order of Islands in the Third Sea, the featured bosses, and quests available in these areas.
Order of Islands in Blox Fruits Third Sea

The Third Sea can be accessed once you are level 1,500 and have defeated Don Swan and rip__indra in the Second Sea. After defeating the two bosses, approach Mr. Captain at Green Zone to open the way to the Third Sea.
The Third Sea area is divided into Main Islands and Side Islands, with the former acting as the main path. The Side Islands don’t have a recommended level requirement; they only require you to be above level 1,500. So, you may tackle them at your leisure. These areas include the following:
- Castle on the Sea
- Treasure Island
- Kitsune Island
- Mirage Island
- Frozen Dimension
- Prehistoric
In the Third Sea, you can start exploring the Main Islands by going through Port Town, which has a recommended level range of 1,500 to 1,575. Once you surpass the upper limit of this level range, you may participate in combat in Hydra Island until you reach level 1,700.
Following the Hydra Island, proceed to the Great Tree to continue your journey. This area is recommended for players between levels 1,700 and 1,775. Next, go to the Floating Turtle, where you can encounter various foes and level up to 1,975 to prepare for the next Island.
At level 1,975 or higher, you will be ready to take on the Haunted Castle. This floating fortress features undead enemies that can pose quite a challenge for the unprepared. Once you conquer this place, proceed to the Sea of Treats at level 2,075, where you can train until you reach level 2,450. Lastly, the final main island is Tiki Outpost, where you can reach level 2,600 and hit the current level cap.
Also read: What is the order of Islands in Blox Fruits First Sea?
Breaking down the Third Sea Islands in Blox Fruits

Here are the different quests, NPCs, and bosses found on the different Islands in the Third Sea:
| Island | Bosses | NPCs | Quests |
| Port Town | Stone | Blacksmith Blox Fruit Dealer Boat Dealer Experienced Captain Luxury Boat Dealer Barista Cousin Pirate Port Quest Giver |
Defeat 8 Pirate Millionaires Defeat 8 Pistol Billionaires Defeat Stone |
| Hydra Island | Hydra Leader | Arena Trainer Barista Cousin Boat Dealer Dragon Crew Quest Giver Dragon Tamer Hydra Town Quest Giver Luxury Boat Dealer |
Defeat 8 Dragon Crew Warriors Defeat 8 Dragon Crew Archers Defeat 8 Hydra Enforcers Defeat 8 Venomous Assailants Defeat Hydra Leader Defeat Training Dummy Defeat Diablo, Urban, or Deandre |
| Great Tree | Kilo Admiral | Barista Cousin Boat Dealer Crew Captain Luxury Boat Dealer Marine Tree Quest Giver Mysterious Force |
Defeat 8 Marine Commandos Defeat 8 Marine Rear Admirals Defeat Kilo Admiral |
| Floating Turtle | Captain Elephant Beautiful Pirate Longma Cursed Skeleton Boss |
Boat Dealer Luxury Boat Dealer Blox Fruit Dealer Blox Fruit Gacha Nerd Citizen Dog House (Wenlock) Marine Recruiter Pirate Recruiter Barista Titles Specialist Tort Horned Man Hungry Man Ancient Monk Awakenings Expert Previous Hero Crypt Master Master of Auras |
Defeat 8 Fishman Raiders Defeat 8 Fishman Captains Defeat 8 Forest Pirates Defeat 8 Mythological Pirates Defeat Captain Elephant Defeat 8 Jungle Pirates Defeat 8 Musketeer Pirates Defeat Beautiful Pirate |
| Haunted Castle | Soul Reaper | Boat Dealer Death King Ghost Gravestone Luxury Boat Dealer Weird Machine |
Defeat 8 Reborn Skeletons Defeat 8 Living Zombies Defeat 8 Demonic Souls Defeat 8 Posessed Mummys |
| Sea of Treats | Cake Prince Dough King Cake Queen |
Boat Dealer Luxury Boat Dealer Sick Scientist Cake Scientist Drip_mama Sweet Crafter |
Peanut Scout Peanut President Ice Cream Chef Ice Cream Commander Cake Queen Cookie Crafter Cake Guard Baking Staff Head Baker Cocoa Warrior Chocolate Bar Battler Sweet Thief Candy Rebel Candy Pirate Snow Demon |
| Tiki Outpost | None | Beast Hunter Dragon Talon Sage Shark Hunter Shafi Shipwright Teacher Spy Submarine Worker |
Isle Outlaw Island Boy Sun-kissed Warrior Isle Champion Serpent Hunter Skull Slayer |
| Castle on the Sea | Rip_indra True Form | Aura Editor Boat Dealer Butler Barista Cousin Dark Step Teacher Elite Hunter Erin Lunoven Luxury Boat Dealer Mad Scientist Mysterious Scientist Player Hunter Plokster Remove Blox Fruit Sealed King Set Home Point Tacomura Water Kung Fu Teacher |
None |
| Treasure Island | None | None | None |
| Kitsune Island | None | Kitsune Shrine | None |
| Mirage Island | None | Advanced Fruit Dealer | None |
| Frozen Dimension | None | Sea Event | None |
| Prehistoric Island | None | Ancient Relic Fossil Expert |
None |
Also read: Unique Roblox username ideas for new players
FAQs
How many Main Islands does the Third Sea in Blox Fruits have?
You can find eight Main Islands in the Third Sea.
How to access the Third Sea in Blox Fruits
The Third Sea can be accessed by interacting with Mr. Captain after defeating Don Swan and rip_indra in the Second Sea.
What is the recommended level to access the Third Sea in Blox Fruits?
It’s recommended to access the Third Sea at level 1,500 or higher.
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Edited by Abhipsito Das
