Akvavit Castle

Akvavit Castle (アクアビット城, Akuabitto-jō) is a temple made of water situated in the north-most ranges of Kumuyamuto Desert. It is home to the Erimu-speaking Water People.

In Magical Vacation
Akvavit Castle is made entirely of water, which was taken from the Kumuyamuto Desert after a handful of Water People were sent from the Plane of Water to the Plane of Darkness; the result of an Enigma invasion.

Entering this location is completely optional. There are no enemies, no battles, and no significant impact on the plot. If you bring Blueberry with you, she can translate the Water Peoples' words. Doing so will reveal some gameplay-related secrets, progression hints, and tidbits of lore.

Seirei of every element (excluding Darkness) can be found in Akvavit Castle. However, their prices for recruitment are overwhelmingly expensive.

Seirei

 * Fire Seirei 6
 * Give 20 Mirori Silver Coins
 * Wind Seirei 6
 * Give 20 Rashimofu Silver Coins
 * Poison Seirei 6
 * Give 30 Shibina's Tails
 * Beauty Seirei 6
 * Give 6 Ganikku Gold Coins
 * Have less than 20 Gummy Worms in your inventory
 * Blade Seirei 6
 * Give 10 Kyamuti Gold Coins
 * Drop all your Gummy Frogs (can be evaded with Cassis)
 * Sound Seirei 6
 * Give 10 Hamonikku Gold Coins (5 with the Small Ocarina and Arancia)
 * Stone Seirei 6
 * Give 30 Blue Gummy Frogs
 * Only appears if 250 or more Gummy Worms have been caught
 * Insect Seirei 6
 * Give 20 Yellow Gummy Worms
 * Tree Seirei 6
 * Give 40 Pinecones
 * Only appears if 250 or more Pinecones have been picked up
 * Beast Seirei 6
 * Give 50 Mahina's Tails
 * Water Seirei 6
 * Give 20 Crescento Silver Coins
 * Thunder Seirei 6
 * Give 15 Helion Gold Coins
 * Ancient Seirei 6
 * Give 19 Aruti Silver Coins
 * Light Seirei 6
 * Only joins if 2 or less Darkness Seirei have been recruited
 * Love Seirei 6
 * Only joins if no Gummy Frogs have been caught

Trivia

 * Akvavit is a Scandinavian distilled spirit made from potatoes or other starchy plants.
 * It can also be spelt as Aquavit.