This area is optional, to unlock this you need to finish Quest 6 on Felisitas Town, visit THIS PAGE for more info about the quest. You can get Esper Ramuh on this area. The stone enemies here drop sparkling stone, which is needed to craft Remedy, so you can go here if sometimes you need sparkling stone.
You may find the enemy drops something which not listed on this table, this table is meant to show you a general idea about the drops, so you have an idea where to look for a certain items (also their weakness and strength). I will update the bestiary if it’s necessary (updated drops info, etc).
|Pearl of Wisdom|
||Machina||Thunder (50%)||–||Polymer Emulsion|
Resist: Thunder (100%), Poison (50%), Silence, Paralyze, Petrify
 Spark Ring
 Lightning Ring
 Fairy Ring (prevent Blind)
 Silver Glasses (Prevent Blind)
Nothing hard from this one if you barthundara, you only need to keep using cura to negate the damage. Make sure you keep your health high when Ramuh health is low. It will use Judgment Bolt when his health below 15%.