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Thermal Pools
Warm, mineral-rich pools for slow, restful soaks.
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Treatment Suites
Massage, facials and body rituals in serene rooms.
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Steam & Sauna
Reset body and mind after a long, lively night.
Begin your stay
Your Onyxero escape starts here
Let our team plan the perfect weekend — from the right suite to a reserved table for dinner. Reserve direct for the best rates.