Airship Celsius The Celsius is the main mode of transportation for the Gullwings. It is more like their base of opperations. From the Celsius they can explore any area of Spira in an instant. You can also save within the main hall to the Bridge. There are sleeping quarters, complete with Barkeep's Gullstore. Here you can purchase items for your journey. Shinra also will decipher Sphere's that you bring him, with his control panel. There is a lot of things to do here for completion points. Speak to everyone on board, when you first arrive, and be sure to rest in the sleeping quarters at the beginning of every chapter. There are also folks that will want to ride with you, such as O'aka, and Clasko. Let them ride with you. It is not like you do not have the room.

Chocobo's Chocobo's are again present in Final Fantasy X-2 as transportation of sorts. You can ride them on the Mi'ihen Highroad, after completing certain tasks and chapters there. Also you can capture Chocobo's to be raised in Clasko's Chocobo farm, where the Monster Areana used to be. But you cannot do this, until after Clasko has gone there and you disposed of the fiends within.