By the shores of the Bothnian Sea you can enjoy bracing sea winds and fine views out over the wild waves. History comes alive on the park's remote lighthouse islands. Divers can here explore Finland's most pristine marine waters. The park is suitable for visitors of all ages and conditions all year, but the islands are only accessible by sea.
The National Park is mainly formed by a narrow, long string of barren islets and islands in the outermost archipelago, reaching from Merikarvia to Kustavi. The coastal archipelago is fragmented and rocky. The islands are mostly fairly small in size and the waters surrounding the archipelago are shallow. The best way to experience the choppy waves and calming sound of the sea and the beautiful views across the archipelago is by boat. A total of 98% of the park's area is water, which makes it ideal for longer excursions whether by sail boat or motorboat. The park's islands are great for stepping ashore and setting up camp for a night or two.