The Arboretum is a huge platform made from woven branches surrounded by tree-houses, some of which have been set up as fruit stands. It is located in the center of the main RainWing village in the Rainforest Kingdom. It appears in The Hidden Kingdom.
When Glory challenges Queen Magnificent and the other RainWing Queens (Queen Exquisite, Queen Grandeur, Queen Fruit Bat, etc..) for the throne instead of fighting to the death, they play a series of challenges at the Arboretum; including a race, a venom-spitting contest, hide-and-seek(with their camouflage), fruit gathering, and a flower hunt
In Winter Turning, Glory calls all the RainWings to meet in the Arboretum.
Arboretum • Queen Glory's Pavilion