Spas with reservation required in California

Napa Valley, California

A hotel spa at the Napa Valley Marriott Resort, open to hotel guests by reservation, geared toward couples and families.

San Francisco, California

Day spa in San Francisco's Union Square, open daily 10am-8pm, moderate prices, walk-ins welcome but reservations required.

Ojai, California

A day spa on Mariano Drive in Ojai open evenings on weekdays and daytime on weekends, for solo visitors or couples.

San Diego, California

East Village day spa specializing in Thai massage, with scrubs, hot stone and coconut soak add-ons, open daily with walk-ins accepted.

Big Sur, California

Adults-only hotel spa at Ventana Big Sur with ocean-view treatment rooms, outdoor cabanas for couples, and a 24-hour fitness and yoga space.

San Diego, California

A budget massage studio in San Diego's City Heights area, open daily from 9am to 11pm for walk-in or booked sessions.

Santa Barbara, California

A moderately priced, adults-only day spa in Santa Barbara open daily except Sunday, with walk-ins welcome though reservations are recommended.

Ojai, California

A medical spa in downtown Ojai offering Botox, dermal fillers, laser treatments and facials by consultation.

Lake Tahoe, California

A small day spa in South Lake Tahoe offering massage therapy and spa packages by appointment, open daily from 9am to 9pm.

San Francisco, California

A moderately priced fitness-club spa in downtown San Francisco offering bodywork, skincare and specialty treatments with reservations required.