17. Crater Lake Crater Lake (Klamath: giiwas) is a caldera lake in south-central Oregon in the western United States. It is the main feature of Crater Lake National Park and is famous for its deep blue color and water clarity. The lake partly fills a nearly 2,148-foot (655 m)-deep caldera that was formed around 7,700 (± … Places Around The World, Travel Around The World, Around The Worlds, Landscape Photography, Travel Photography, Night Photography, Landscape Photos, Cool Places To Visit, Places To Travel