Epic of Serinor: Arcane Dawn
A large, freshwater sea in northern Amin, measuring roughly 50 miles across at its longest point. The largest halfling settlement, Amunash is located on the southern shore of the lake. Lake Amunash is also the only known habitat of the hawkfin, a fish which produces an incendiary oil key to many halfling gadgets.
An island near the center of the lake was claimed by a band of outcast dwarves, who quickly discovered rich gem veins in the strata beneath the lake.