2056ab3d_Guide___Kings_and_Legends_Wiki__Description
[Upgrade to] Level 13 [Unlocks] Seaport [Rewards] 1000 [Description] 
Get can gain experience from Map Regions, Boss Fights and the Arena battles. Go on Expeditions from the Seaport and gather Exp., Silver and Crystal! Build and upgrade the Seaport in the City Hall.
Game Guide - Kings and Legends Wiki
Description