The holy place of the Horse Clans. Its location is not widely known to outsiders, although all reports put it near the mouth of the Kairen River as it empties into Lake Coy'in at the eastern edge of the Lupaus Plains.
Outsiders are forbidden to approach the area, and ships on the lake report extensive reefs in the area which preclude further easy approach. That's not to say that adventurous individuals haven't approached...but none have returned. The Horse Clans guard their secrets jealously.