The national park preserves this Northern Norwegian coastal landscape.

The bedrock consists of hard granite rocks and the landscape image gives exciting impressions of the glacial forces that have worked on Senja.

The most common smaller animals are red foxes, stoats, hares, small rodents, and two species of shrews.

Trout and char are common, and salmon run right up the river to the lake Åndervatn.

In the valley and the park are similar names such as the river Ånderelva and the lake Åndervatnet.