Port Angeles, WA
Sol Duc Hot Springs Resort
Historic resort in a mossy old-growth valley of Olympic National Park with three mineral soaking pools (98-104F) plus a freshwater pool, drained and refilled nightly.…
Columbia Gorge · Stevenson, WA
Six minimalist cabins on 100 acres above the Columbia River Gorge, each with its own private continuously-flowing geothermal soaking tub blending Japanese onsen and Scandinavian spa culture. Adults-oriented quiet retreat, ~1 hour from Portland.
For day-use admission, popular resorts sell out on weekends — if the official site offers reservations, book ahead. Weekday visits are usually easier as walk-ins.
Many developed springs welcome families, but age rules, family hours, and adults-only pools vary by property. Check the official site for the current policy before visiting with children.
Start with 15–20 minutes, then cool off and hydrate before going back in. Hot mineral water dehydrates you faster than you expect — drink water between soaks and don't push through dizziness.
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