I posted this on Reddit an was encouraged to re-post here.
For those familiar with FFIX, I was thinking it'd be neat if we could dig with our chocobos in Eurekan zones for special 'ancient' maps (ultimately rewarding special loot, glamour, Eureka experience, etc.). Chocobo digging was a sort of gathering skill in FFXI, so perhaps this could be similar, but I'd want the rewards to be more akin to FFIX's Chocobo Hot and Cold in which you could discover 'Chocographs' or 'Maps' that lead to valuable treasures around the world. These maps could lead to locations in Eureka zones and/or around the world.