Valsörarna or Valassaaret is a small archipelago in Korsholm, Finland, located in the Kvarken region of the Gulf of Bothnia. The islands are the last you see when going by boat or ferry from Vaasa, Finland to Umeå, Sweden. The archipelago is detached from Korsholm's main Replot-Björkö archipelago. They are uninhabited and there is no road access. However, they are an important bird sanctuary, frequented by birdwatchers and ornithologists. They are included in the UNESCO World Heritage List along with the High Coast of Sweden and the archipelago of Kvarken, for exhibiting the effects of land rise due to post-glacial rebound.