Seaside resorts in Finland

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 , while the sub-region has a population of approximately . It is the most populous municipality in Finland, and the fourth most populous urban area in the country. Oulu is also the most populous city in Northern Finland.

Pori (; ; ) is a city in Finland and the regional capital of Satakunta. It is located on the west coast of the country, on the Gulf of Bothnia. The population of Pori is approximately , while the sub-region has a population of approximately . It is the most populous municipality in Finland, and the eighth most populous urban area in the country.

town in the region of Uusimaa in Finland

Naantali (; ) is a town in Southwest Finland, and, as a resort town during the summer, an important centre of tourism in the country. The municipality has a population of (), and is located west of Turku.

Kalajoki (; literally translated the "fish river") is a coastal town and municipality of Finland. It is located in the immediate vicinity of the Gulf of Bothnia in the province of Oulu and is part of the Northern Ostrobothnia region.

Hailuoto (; ) is a Finnish island in the northern Baltic Sea and a municipality in Northern Ostrobothnia region. The population of Hailuoto is (), making it the smallest municipality in Northern Ostrobothnia and the former Oulu Province in terms of population. The municipality covers an area of (excluding sea areas) of which is inland water (). The population density is . Of all the Finnish sea islands, Hailuoto is the third largest after Fasta Åland and Kimitoön.