Spas with overnight stay in California

Napa Valley, California

Carneros Resort and Spa is a luxury hotel spa in Napa Valley with outdoor soaking tubs, garden lounges and treatments reserved for overnight guests.

Calistoga, California

A hotel-guests-only resort spa at Four Seasons Napa Valley in Calistoga, set inside a working vineyard property with a pool and on-site restaurant.

San Diego, California

A historic beachfront hotel spa in Coronado offering ocean-inspired treatments, open to guests staying at Hotel del Coronado.

Carmel-by-the-Sea, California

A golf-and-wellness resort spa in Carmel Valley, open to hotel guests only, with a heated pool, fitness cabanas and treatments at Spa Adeline.