The valleys of Norway are known for their stunning natural beauty, characterized by steep mountains, lush greenery, and clear rivers. Notable valleys include the Geirangerfjord and Nærøyfjord, both UNESCO World Heritage Sites, which attract visitors with their dramatic landscapes and rich biodiversity. These valleys were formed by glacial activity during the last Ice Age, resulting in deep, U-shaped formations. The Sognefjord, the longest fjord in Norway, features several valleys that provide access to picturesque villages and hiking trails, making them popular destinations for outdoor enthusiasts and nature lovers.