Middle Town

Middle Town is the home base of the First Sea, and it is a hub rather than a leveling island. The wiki describes it as a mostly grass-free island with two buildings and a courtyard in the center, surrounded by 13 buildings and a fountain, with stone docks on the left and right edges and rocky beaches on top and bottom. Its port is the largest in the First Sea: three docks on the east and three on the west, so up to six ships can be spawned at once. The shops are the main draw: Boat Dealer, Luxury Boat Dealer, Blox Fruit Dealer, Blox Fruit Gacha, a Weapon Dealer, Home Points and the Dragon Talon Sage. Quest-wise, the Experienced Captain is the way to the Second Sea after you defeat the Ice Admiral, and Robotmega starts The Son Quest for the Dark Blade V2. His house also holds the Aura Editor, who lets you change your Aura stage. The boss here is The Saw, and the developer Janus appears through a secret quest that begins by breaking a window next to the Experienced Captain. Treat the island as a stop to shop, set a Home Point and sail on.