MoonAcre Spa & Baths

MoonAcre Spa & Baths sits on Lincoln Avenue in Calistoga, the stretch of Napa Valley known for its geothermal waters and bathhouse tradition. This is a day spa in the straightforward sense: a place to book a soak or a treatment and leave a few hours later, rather than a destination resort with overnight stays.

The facilities center on water and heat — a thermal pool, a hot tub, and a sauna make up the core amenities. That combination suggests the typical visit here revolves around soaking and sweating rather than an extensive treatment menu, though the venue is classed as a day spa, so services beyond the pools are likely part of the offering.

MoonAcre markets itself to both families and couples, which is a bit unusual in a region where many bathhouses lean adults-only. The moderate price tier puts it in the middle of the Calistoga spa field — not a budget option, but not the priciest either.

Access is listed as both walk-in friendly and reservation-required, so the practical approach is to call ahead, especially on weekends when Calistoga's spa scene draws Napa Valley day-trippers. Hours run 9am to 5pm every day of the week, with no stated seasonal changes. There's no website listed, so the phone line at (707) 942-0992 is the direct way to check current pricing, treatment options, and whether a specific time slot is open before making the drive up Highway 29.