Koryo Peninsula

The Koryo Peninsula was a large stretch of land in the northeast Kara-Tur. The realm of Koryo lay at its southern end.

Geography
It was a roughly boot-shaped expanse of land that divided the Yellow Sea from the Eastern Sea. It began northeast of the Ama Basin and circled around the northern shore of the Yellow Sea before extending southwards. The Koryo Peninsula was a rough land with a great mountainous spine running its full length. On either side, between the mountains and the seas, the forests that began in the Ama Basin grew all the way down the peninsula.

At the very southern end, the peninsula divided into two prongs, one short, one long, giving the shape of a boot. This area was dominated and defined by the Vorkani Mountains. Between these prongs lay Kang Bay and the Kanko volcano.

Breaking away from the end of the Koryo Peninsula were a series of rugged islands formed from extinct volcanos. The biggest were Kozakura and Wa, while the island of Saishu lay north the "toe" of the peninsula. These archipelagoes continued southward back towards central Kara-Tur.

Inhabitants
The southern part of the peninsula were home to several small kingdoms. The most prominent were those of Choson, the land at the very southern-most tip; Koguryo, Saishu, and Silla were later welded into the larger kingdom of Koryo.

In the northlands beyond Koryo there were "wild tribes" who oft invaded the southern kingdoms.

Somewhere in the wilds of Koryo was reportedly a tribe of powerful but barbaric, dark-skinned wizards. They enjoyed watching prisoners and monsters battle in arenas. Surrounded by stands of seating, battles took place inside huge crystal cylinders, 30 feet (9 m) wide and 50 feet (15 m) high and several feet thick, with small holes piercing the ceiling to permit air. The walls were translucent; a captive could barely see out, but spectators could see in easily enough. The wizards would even take krakentua buds, and force newly hatched krakentua spawn to fight. A krakentua related these events via dreams to adventurers in the Fochu Peninsula in Wa in 1358 DR.

According to Shou Lung legend, the Second Emperor Chin of the Ho Dynasty of Shou Lung (crowned −620 DR ) used a magic ring to enslave a family of enormous giants from the wilds of Koryo. He set them to work raising the massive stone blocks of the Fortress of Kuai. When he died, he had the giants place a huge stone block to seal his body inside the fortress, along with his treasure and enchanted ring.