Blox Fruits islands are a locations that you can travel between throughout the game.Most islands have NPCs and quests, as well as docks with Boat Dealers where you can buy boats to traverse the seas. Blox Fruits
as well as sell Blox Fruit. More significantly, one of the NPCs in this area has the quest Dark Blade V2, which is quite powerful. Robotomeg is an NPC you’d be looking for - they are in the house with the green roof. This NPC holds the quest Son Quest for Dark Blade...