Solstice Bio Spa is part of Soap Lake Resort. Visit Solistic BioSpa
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23 Bioactive Minerals. One Extraordinary Water.
A geological phenomenon formed over millennia, delivered directly to your room and spa experience
The Origin Story
10,000 Years in the Making
For more than 10,000 years, the waters of Soap Lake have been quietly forming their rare mineral profile — layer by layer, season by season, through ancient geological patience. What you feel in minutes is the result of millennia: minerals suspended in perfect balance, a natural colloid found almost nowhere else on Earth, and a lake whose chemistry has remained remarkably unchanged across generations. Every soak is contact with time itself — a renewal shaped not by trends, but by the slow, intelligent work of nature.
Dual-Water System
Every room at Soap Lake Resort is equipped with two water systems: standard filtered water and Soap Lake mineral water — piped, heated, and filtered year-round directly from the lake. You can drink it, bathe in it, and soak in it — without leaving your room.
Fresh Water
Clean, fresh and perfect for everyday use.
Mineral Water
Piped directly from the lake Heated + filtered year-round
Healing Benefits
Where Mineral Water Meets Your Stay
Every Inn Room
Solstice Biospa
Every Cabin
Essense Retreat
Every Cottage
Mud + Water Synergy
The Legendary Soap Lake Mud
Soap Lake is one of the world's rare mineral lakes, known for its highly alkaline, buoyant water and remarkable mineral diversity. Its waters contain over 25 trace minerals, including sodium bicarbonate, sulfates, and carbonates.
This distinctive mineral composition has shaped Soap Lake’s identity for generations. Today, its mineral waters remain at the heart of the resort experience — flowing into guest accommodations and forming the foundation of wellness experiences at Solstice BioSpa.
MINERAL WATER, FROM ROOM
TO RETREAT
Guest Stories
Healing Stories from Soap Lake
I love this place. My room had a bathroom with mineral water coming out of the tub faucet and tap water coming out of the shower. Having your own mineral bath was really nice.
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Mark Cooper
Seattle, Washington
First time here, we LOVED IT! Very friendly staff, we had a Mexican themed room. They have this spa room (paid for the hour) and it was AMAZING!! The mineral water was so amazing!
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Carmina Alemar
Seattle, Washington
This is an absolute gem of a location and resort! We were pleasantly surprised at every turn starting with the friendliness and hospitality Sam at the front desk offered us to the beautifuly appointed room, the views over the lake and assortment of wellness features at your fingertips.
Cristina
Seattle, Washington
