"Zidane finds Quina again at the frog pond. If you've adventured together before, s/he gripes about the hard trip back from Cleyra. It's a good idea to see Quina before doing any leveling up or Ability learning out on the surrounding plains, because recruiting him/her brings the party up to four strong. You might find a new brood of frogs to catch at the pond, too.
ENTRANCE TO THE UNDERWORLD
Return to Quale's hut to see if the elder Qu has any knowledge of an excavation site. Quale does give a few sketchy clues, but doesn't know much more than you do. From Quale's hut, exit to the right into the brush. Quina will pick up the scent of more frogs, and takes Zidane straight to the entrance of the excavation site. Enter the tunnel and descend the steps into Fossil Roo, the treacherous underground passage to the Outer Continent."