The flag is received as a reward after completing Flag Fall. It can be purchased from Boni's Waiko Reward Shop for free, and can also potentially spawn on an uncharted isle. The player may only claim one island at a time. If a player finds another island they wish to claim, they must have another flag available to plant on the new island. It is a good idea to keep one in the bank, so players can retrieve it from the rowboat (bank) if the player ends up on an Uncharted Isle that they would like to claim, but don't have a flag in their inventory.