I always remember the Airship sisters quest, though I never got too far into it; I would always forget about the quest. Also had no idea there were fishing and racing minigames.

I will say thought that playing through TZA made me appreciate that whether or not you accept the marks, there will be NPCs talking about the monster in the Garamsythe Waterway, or the Wyvern terrorizing the resistance soldiers. It's a touch I wish they had in the later games to make everything feel more important.