White Lotus camp

"neutral"

- Well, here we are. Welcome to old people camp.

The Order of the White Lotus set its camp between Ba Sing Se's Outer and Inner walls (i.e. the agrarian zone) in preparation for their plan to liberate the Earth Kingdom capital upon the arrival of Sozin's Comet. It was unknown how the order managed to penetrate the outer wall and enter the agrarian zone, though with their combined skills it may not have been difficult.

History
In "Sozin's Comet, Part 2: The Old Masters", after Nyla was unable to find Aang, Zuko decided to track Iroh with the scent of one of his slippers. June led them to the outer wall of Ba Sing Se, and told the group that Iroh was close by. The group camped there and decided to start their search again at dawn. However, that night the group was approached by Bumi, Jeong Jeong, Pakku, and Piandao, who revealed themselves to be members of the Order of the White Lotus. After a brief conversation, they took the group to their camp, which Bumi referred to as "Old People Camp". When everyone reached the camp, Piandao led Zuko to Iroh's tent. Zuko was initially hesitant to enter the tent, but when he did, Zuko found Iroh sleeping soundly. Relieved, he sat down and quietly waited for Iroh to wake up. When he woke up, the two had a tearful reunion. The following day, it was decided that Zuko would go back to the Fire Nation on Appa so that he could take the throne when Ozai is defeated. Katara agreed to go with Zuko, in case he needed help to fight Azula. Sokka, Suki and Toph were to go to Ozai's Airship Base on a Giant Eel Hound to do whatever they could to help Aang, who was still missing.

It is likely that the camp was dismantled after Ba Sing Se was liberated and the War ended.