Secluded in the Cascades twenty-five miles east of North Bend, Goldmyer Hot Springs is your reward for a 4.5-mile hike through old-growth forest. Named after one of Seattle’s first settlers, the springs are fed by a waterfall that cascades from a 30-foot cave. Skinny-dippers rejoice—nude bathing is allowed here.

Up to 20 people per day can visit the Goldmyer Hot Springs, which range from 104 to 111 degrees Fahrenheit. Make sure to reserve your spot in advance, as well as obtain the required Northwest Forest Pass.