Athear Austrat (Celestial Flight)
Crescent Lake was formed by some Gabranthians that became wealthy very early on. They sought out their own private island, however over time, other Gabranthians followed to where it has turned into a small community of people on this land. Considered a nice vacation spot, surprisingly few people return there more than once.
A possible cause of a shrinking amount of tourists could be related to the aquatic creatures that Tolrendo spoke of.
Crescent Lake took a hit at the end of the second war. Floods drowned out the area. Many of the people left after that. Mysteriously though, all at once, the place was repopulated several years later. Kaidor finds out from his father that he was sent to Crescent Lake because it was infested with Devils.