Found the Fire Ring, Book of Light, and Knoc's Crystal (transform for male Lilty) in left chest before boss.

Found Sun Pendant in the two chests in the narrow path at the start of the map.

Masamune also drops from the right chest on the narrow path in the 1st section.

The narrow path has two chests, here are some of their contents found from my save scumming for the Gravity Ring...

<- Left Chest:

Heavy Armband
Sun Pendant
Onion Sword
Chicken Knife
Giant's Glove

-> Right Chest:

Green Beret
Twisted Headband
Onion Sword
Ring of Gravity

The Gravity ring also drops from one of the 2 chests on the left side of the starting map.

Misty Mount Kilanda unlocks in US at 4:00 a.m. PST on Sun, Mon, Fri, Sat