Haapavesi is a town and a municipality of Finland. It is located in the North Ostrobothnia region. The town has a population of 6,685 (31 March 2021) and covers an area of 1,086.11 square kilometres (419.35 sq mi) of which 36.41 km2 (14.06 sq mi) is water. The population density is 6.37 inhabitants per square kilometre (16.5/sq mi). Neighbour municipalities are Haapajärvi, Kärsämäki, Nivala, Oulainen, Raahe, Siikalatva and Ylivieska. The municipality is unilingually Finnish. The town is the Finnish national kantele village. It is also known for the Haapavesi Folk Music Festival which gathers folkmusicians together. At Haapavesi, there is a 327 metres (1,073 ft) tall guyed TV mast, which belongs to Finland's tallest man-made structures.
Read more on wikipedia