Century Island is the oldest island in Zmaria.
Century Mountain is the birthplace of fifis, so it is believed. It would make since because the Master fifi has been there his entire life, and he is the oldest fifi recorded in history. Fifis went back to defend it during the great foo war when foos tried to attack the library and steal the fifipedia and learn all of their weaknesses. But then the master fifi stepped in and knocked all of the foos away with an elemental blast.
It is covered in green, lush, jungles.