Earth Kingdom ferry



The Earth Kingdom used ferries to secretly transport refugees from a protected hidden port in Full Moon Bay to Ba Sing Se.

History
Aang, Katara, Sokka, and Toph attempted to travel to Ba Sing Se by these ferries with Tahn and Ying. However, when their tickets were stolen, Aang decided to lead the group through the Serpent's Pass instead. Zuko and Iroh were able to obtain tickets for the ferry, where they later met Jet, Smellerbee, and Longshot.

These are now likely to be used for conventional travel due to the liberation of Ba Sing Se and the end of the War.

Schematics


The ferries seem to have a simple structure with a large hull complete with captain, crew, and passenger quarters, a kitchen, and other important components of the vessel. The captain resides on the upper deck, from where he and his crew control the ship. For the vessel to move, it uses a paddle wheel, but how the boat is powered is unknown. Since there are no smokestacks, the ships must use another form of energy to move the vessels.