Shepherd Bay County, Flute Town.
The children from the church school on Glass Island would be organized by the school to come here for their annual trip.
After all, there isn't much to do on Glass Island—it's an exorbitantly expensive place. The place with the best scenery is probably the island in the lake where the Hall of Silver and Tin is located.
But the children still need to see the natural beauty outside, to know that not everywhere in Avalon is filled with factories spewing smoke and the constant rumble of trains running on the tracks.
This is helpful for the children's future employment as well.
The supply of priests within Glass Island is already saturated. Not to mention newly graduated Priests and Assistant Priests, even Bishops are a dime a dozen. There are nine churches on Glass Island, and each church has more than one Bishop of at least the fourth Energy Level overseeing it.