These caverns, still naturally adorned in stalactites and stalagmites and filled with deep pools of water, are the closest thing Erimo has to docks. Some pools are redirected into the city's water supply, while others are used to breed fish and other aquatic foods, while still others are simply used as canals to transport workers to and from the mines, even further removed from the city. Cave divers are often employed to explore caverns that cannot be accessed without going underwater for further development.