Kalay Tunnel is a series of underground pathways and a sewage network of sorts located underneath Kalay. It has three entrances/exits: In the town itself in a cave entrance at the town's northeastern area, at the initially sealed-off end of a hallway in Hammet Palace, and "officially" at an always sealed-off point near the town named Kalay Tunnel Entrance. At first, the only thing that can be acquired from this place is the most important one, a Mars Djinni named Scorch. Later, in response to completing the sidequest at Lunpa Fortress, the rest of the tunnel opens up to be properly explored, and what can be then looted includes the Spirit Gloves and an Apple.
The tunnels are arranged to funnel water from a small lake near the town (this lake is not visible on the overworld map) and empty them into the two fountains at the northern area of the town. The tunnels can also be used by Master Hammet to sneak out/into his palace if necessary.
