Final Fantasy 5 Part 12 (wild goose chase)

I have no idea where to go. So i will search outside recording.
Edit: I played little bit now... and yeah -_- In the playthrough vid i made here, about 42:00 in, i went randomly to above the Jacohl cave to that town where it became a flying doomsday airship or something. And i had no clue where to go from there. Well apparently you are supposed to land to the ship garage at the crescent island area.