These caverns contain a lake whose mineral-rich water produces delicate crystalline structures on the walls. These crystals refract light in spectacular ways, inspiring artists and illusionists.

The water is ideal for brewing Piam’s famous “windwine,” a light, floral liquor known for inducing calm, meditation, and sometimes prophetic dreams.

A hidden passage connects this aquifer to an underground route from Borunoa, making it a popular — and dangerous — afterparty location.