The Caves of Elendor are a network of tunnels that lead throughout Zmaria and Zmonia. It is a common route for travelers that want to sightsee the underground world. It is completely safe as every route is lit up, and there are multiple eateries and stores along the way.
- During the Tribal Era, the Earth Tribe dug a series of tunnels leading throughout Zmania. This was thought to be an attack strategy for ambushing other tribes from below but no known tribes rivaled the Earth Tribe. Though no one knows how, but occasionally, random members of the Metal Tribe were found sitting on the floor sleeping.