Iwagakure

Canyon

In the huge country of Earth, this large canyon protects Iwagakure and there is only one way from one edge to another edge, the infamous wobbly bridge. It has broken many times but completed by other ninja. This is to protect their villagers in somesort as Villagers use an Earth Bridge technique. You could also flicker to the otherside, and down the trail is the Iwagakure gate.