The 8 Best Hot Springs Hotels in the U.S. - AFAR

"A historic Southern California geothermal estate undergoing a major rebirth after decades of closure, with renovations focused on preserving original architecture across roughly 46 acres and reintroducing dozens of alkaline geothermal pools and spa facilities. Planned offerings include some 50 mineral-rich pools, a restored bathhouse, saunas and steam rooms, an extensive menu of spa therapies (massages, facials, hydrothermal and hormone-balancing treatments), classes like yoga and sound baths, and multiple food-and-drink venues (a main restaurant, wine bar, poolside café, and coffee shop). The resort will provide a full complement of overnight rooms and suites outfitted with amenities designed to enhance sleep and relaxation." - Michelle Baran