Crater Lake National Park, in southern Oregon, contains America’s deepest lake (almost 700 meters or 2000 feet in depth) which is known around the world for its beautiful, deep blue color. The crater is actually the caldera of Mount Mazama which erupted about 7,700 years ago leaving this steep-sided bowl which eventually filled with water. A 53 km (33 mile) road (Rim Drive) encircles the lake and offers numerous overlooks and access to walking trails. Boat rides to Wizard Island, an attractive, conical land mass within the crater, are available during the summer season and leave hourly from Cleetwood Cove. However, access to the boat dock requires a very strenuous walk from the parking area.
While in the vicinity you can spend some time in the lovely city of Portland, or drive eastward on the Columbia River highway, or north to Mount St Helens National Monument, in Washington state.
Head for “The Watchman” overlook for breathtaking views of the lake, Wizard Island, and the surrounding countryside.