Hey there, fellow Final Fantasy X explorer! When it comes to side quests, there are a few that you definitely don’t want to miss out on. Make sure to complete the Monster Arena challenges for some epic battles and unique rewards. Don’t forget about capturing all the monsters to unlock some powerful abilities for your characters.

Another fun side quest is the Celestial Weapons hunt. Each character has their own ultimate weapon to obtain, which involves completing various tasks and dodging lightning bolts in the Thunder Plains. It’s challenging but totally worth it for the power boost.

Lastly, be on the lookout for the Al Bhed Primers scattered throughout Spira. Collecting them all will not only help you understand the Al Bhed language but also unlock some cool secrets. Happy adventuring!