In the land of lightning, there is a gigantic and ancient turtle that Kumogakure has cared for since its founding. It is deacribed as a moving fortress and is equivalent in size of the Konoha forest of death. Many Kumo ninja use this as a training ground and every now and then, the Raikage trains near the falls of truth that is guarded with the top ninja.
Naruto: The Shinobi's Shroud [Open]
A little more than your average Naruto guild
