Unlockable Fishing Spots
Once the Fishing mini-game began, you can only fish in the Lower Reaches fishing spot.

However, you can unlock more fishing spots when you reach certain targets.

 

Unlockable  How to Unlock 
Middle Reaches  Get 5 perfect fishing in the Lower Reaches 
Upper Reaches  Get 5 perfect fishing in the Middle Reaches 
Secret Reaches Fish up Saboten Bond in the Upper Reaches with Matamune 
Master Den  Fish up Saboten Crest un the Secret Reaches 
Taikou treasureChest   Get 9 perfect fishing in the Master Den 

 

  
Unlockable How to Unlock
Ashe Awarded for having the average party level over 50.
Ba'Gamnan Awarded for completing the hunt catalog.
Balthier Awarded for attacking 300 times.
Basch Awarded for killing 500 foes.
Belias Awarded for obtaining every esper.
Carrot Awarded for defeating the monster, Carrot.
Chocobo Awarded for walking 50,000 steps.
Crystal Awarded for obtaining every character's magics.
Dalan Awarded for completing every map.
DeathGaze Awarded for defeating the monster, Death Gaze.
Fafnir Awarded for defeating the monster, Fafnir.
Fran Awarded for using magic 200 times.
Gabranth Awarded for initiating every fusion technique.
Gilgamesh Awarded for defeating the monster, Gilgamesh.
Gurdy Awarded for using/spending 1,000,000 gil.
Hell Wyrm Awarded for defeating the monster, Devil Dragon.
King Behemoth Awarded for defeating the monster, King Behemoth.
Migelo Awarded for selling 1000 loot.
Montblanc Awarded for attaining (monster) chain level 50.
Penelo Awarded for getting 100,000 gil.
Rasler Awarded for mastering all character's license board.
Reks Awarded for earning 500,000 clan points.
Trickster Awarded for defeating the monster, Trickster.
Ultima Awarded for defeating the esper, Ultima.
Vaan Awarded for stealing 50 times from enemies.
Vayne Awarded for using techniques 100 times.
Vossler Awarded for obtaining every character's techniques.
Yazmat Awarded for defeating the monster, Yazmat.
Zodiac Awarded for defeating the esper, Zodiac.