Oregon’s dazzling blue Crater Lake, a remnant of a volcano, is worth spending some time staring at.

To see the water up close, take one of the park’s many boat tours. Another option is to do the 33-mile long (53km) Rim Drive for views down into the lake from different vantage points. Roads are generally open in the Crater Lake National Park between July and October. If you come in winter, the park’s North Entrance Road is excellent for snowmobiling, while some trails become passable for cross-country skiing.