Glen Ivy Hot Springs
Day SpaTemescal Valley, California
Adults-only hot springs resort in Temescal Valley with 19 outdoor mineral pools, red clay baths, and a cave-like grotto, open daily 9:30am-5pm.
$$
Spas with day pass
Facilities access for the day without a treatment or a room.
3 spas match
Mokara Salon & Spa
Day SpaTucson, Arizona
Hotel spa at Omni Tucson National Resort with 12 treatment rooms, a couples suite, salon services, and day passes open to both guests and locals.
$$The Spa at Vinarosa
Day SpaCalistoga, California
A 20-treatment hotel day spa in Santa Rosa with an indoor caldarium plunge pool, eucalyptus steam rooms, and walk-in or reserved day passes for adults 18+.
$$$