LArca (Present)

From the world map, visit the building near L'Arca to find 15 gold coins in a breakable object.

Go to the western section of the island. At the end of the path, past the poisoned water near the Grotto’s entrance, there is a chest containing a Seed of Strength.

Head inside the Grotto. At the first split, go east to find a chest with Stone Fangs inside. Equip these to Ruff for an attack boost if you did not purchase them in town.

In the room with two doorways, find another chest in the southeast corner containing 120 gold coins.

Go through the southern of the two doorways. There will be another chest with a Mini Medal (#5).

Continue to the end of the dungeon. Once you reach the outside area, go all the way around to the doorway at the end to find a chest inside with Bunny Ears.

Finally, go to the location where you fought the boss in the past. You will find a familiar face who will give you a Blue Fragment.