Calistoga is the largest hot springs resort area in the state with a number of spas, ranging from budget-friendly to ultra-luxurious.
Read MoreThe luxury retreat features a modern farmhouse-chic design and is set within a working winery in Napa Valley.
Read MoreLocated in the historic town of Calistoga, California, this charming family-owned spa has authentic mud and mineral baths, and more.
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