HotPrimitive

Poison Lake

WA122°F

About Poison Lake

Poison Lake is a steamy, primitive hot spring nestled in the wild landscapes of Washington. Its consistently warm waters, hovering around 122°F, bubble up from geothermal sources, creating a naturally soothing soak surrounded by rugged terrain. This remote spring offers an authentic immersion in nature’s raw geothermal power.

Getting There

Reaching Poison Lake requires a bit of effort, as it sits off the beaten path in a forested area. You can expect a moderate hike over uneven trails, with no designated parking but some roadside spots nearby. Prepare for a rustic journey where navigation skills come in handy.

What to Expect

The water at Poison Lake is hot and refreshing after a hike, with mineral-rich warmth that enlivens your senses. The atmosphere is quiet and secluded, providing solitude amid the natural surroundings. Facilities are nonexistent, so the experience feels truly unrefined and connected to the earth.

Tips for Visitors

Visit during the shoulder seasons to avoid muddy trails and steady gels of mosquitoes. Bring sturdy hiking shoes, plenty of water, and supplies, since no amenities are available. Respect the delicate environment and pack out all trash, as there are no fees or formal regulations but a strong need for stewardship.

Last updated December 20, 2025

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