Hey there, fellow Final Fantasy X explorer! When it comes to side quests, there are a ton of hidden gems in Spira waiting to be discovered. Don’t miss out on the Celestial Weapons, as they are super powerful and totally worth the effort to upgrade. Be sure to tackle the Monster Arena challenges for some epic battles and rewards. Also, don’t forget about the Al Bhed Primers – collecting them all will help you understand the Al Bhed language. Happy hunting, and may Yevon guide your way!