Surrounding the sprawling industrial village of Amegakure is the massive ten-mile wide circular Lake Yubiwa, also known as the Ring Lake. The lake is where the water irrigation system of Amegakure recycles out water from the lower-level Cistern Sector to prevent the village from flooding. Natural lake rising is mechanically prevented from spilling into the village through an intricate system of walls and dams. The frequent flooding of Lake Yubiwa only spills into the outward forested lands as a result. Lake Yubiwa is a natural mote for the purposes of the village's defenses. One massive mechanical bridge crosses over the entire lake that leads toward the tall iron gate and walls and is the only entrance into the village. In defense mode, the bridge can be retracted and the entire lake can be electrified.
