Opal Creek runs through thousands of acres of protected old growth forest, crisscrossed with over 30 miles of hiking trails.
Goldmyer Hot Springs - Located 25 miles east of North Bend, WA. Click for details.
Granite Hot Springs in Jackson Hole, Wyo. In the winter, you can reach the pool only on a snowmobile or cross-country skis, but in the summer — when the water is an easy 93-98 degrees — it's a gorgeous 30-mile drive along the Gros Ventre Mountains through the Bridger-Teton National Forest.