Vailinn is a port city at the mouth of the River Wiyel in Ororr. It lies on the east bank of the river, forming a conurbation with the great international port of Toborr, on an island in the main channel.
Vailinn was founded in the 8th century BME as an Ensanni imperial city attempting to rival Toborr, but it's shallower harbour, greater regulation and generally more law-abiding and stuffy imperial bureaucracy meant that it has always been eclipsed by its more famous island neighbour.