Bothnian Bay National Park (Finnish: Perämeren kansallispuisto, Swedish: Bottenvikens nationalpark) is a national park in Lapland, Finland.

The park which was established in 1991, covers 157 square kilometres (61 sq mi) of which 2.5 square kilometres (0.97 sq mi) is on land.

The islands in the area have been formed by post-glacial rebound, and the scenery is still in a constant state of change.

The national park is reachable by boat although visiting is only recommended for experienced boaters.

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