Oulu is a major port city in Finland and the regional capital of North Ostrobothnia. It is located on the north-western coast of the country at the mouth of the River Oulu. The population of Oulu is approximately 217,000, while the sub-region has a population of approximately 265,000. It is the 5th most populous municipality in Finland, and the fourth most populous urban area in the country. Oulu …