Quest 64/Quest for the Water Jewel

Larapool
After defeating Zelse in the Windward Forest, bring the Wind Jade back to Leila in Larapool, and she'll open the door under the fountain. There, the magic of the water is released, and you can get two more spirits and access the Blue Cave.

Chest items:
 * Silver amulet

Blue Cave
Monsters of the Blue Cave:

Chests in the blue cave:
 * Heroes drink
 * Healing Potion
 * Mint leaves
 * Healing potion

People of the Blue Cave:
 * Epona
 * Chappy at Epona's Cottage lets you save game

There are six spirits in the Blue Cave.