Ten Thousand Waves opened in 1981 on the road from Santa Fe to the Hyde Park ski area, modeled on Japanese mountain hot spring ryokan that founders Duke and Mara Klauck had visited in Japan. The architecture is a faithful Japanese-onsen idiom: tatami floors, wood and stone construction, lantern lighting, and the spa-temple separation between bathing and dining buildings. Forty-plus years later it remains the most thoroughly Japanese-styled onsen in the United States.
The product is the private tub ritual. Each of the private hot tub suites is different in architecture but follows the same Japanese onsen template: a wood or stone soaking tub at around 104 F, a wet sauna, a dry sauna, a small cold plunge pool around 50 F, and a private shower and bathroom. A 90-minute session at $89 per person is the standard reservation before tax. The Reserved Community Soaking session is a more affordable option at $64 per person before tax and hosts up to 10 people in a larger communal tub.
The water is the one place where Ten Thousand Waves diverges from the natural-hot-springs category. There is no geothermal source under the property; the spa uses heated and treated mineral water. The ritual, architecture, and skin-and-muscle effect are similar to a natural onsen, but visitors expecting a wild Western hot springs should know this is a spa product, not a Glenwood-style natural soak.
Operationally, reservations are central. The spa schedules private tubs up to 45 days in advance for the general public and 60 days for lodging guests at the on-site Houses of the Moon inn. Weekends fill within hours of opening the booking window. Massages start at $229 and facials at $169, and the on-site Izanami izakaya is one of Santa Fe's stronger Japanese restaurants. Most weekenders book a tub, dinner, and a Houses of the Moon room as a single integrated evening.
