Islets are the main exploration content of Starsea Voyages. They are instanced zones, typically focusing on a specific Creature type, Item, or will feature a puzzle that can be completed for extra rewards.
Each Islet will initially be Unknown, notated with a " ? " icon, however upon exploring an Islet, its name and core type will be revealed, and can be returned to at a later date.
During a Starsea Voyage, Planet Tenders may also come across Encounter islets, which will be home to a Neighbor. These islets can spawn randomly upon starting a voyage, or during a voyage, and once the Neighbor has been greeted, and the Islet left, it will despawn and cannot be returned to.