I bought a "deal" at TravelZoo for GrapeSeed Spa at South Coast Winery Resort and Spa in Temecula: it was great! An hour drive from San Diego. Early morning appointment, week-day - no crowd! Nice.
Peaceful, beautiful setting, looks and smells great. Prompt, cordial service. Super clean!! Nice decor. Awesome massage, 2 glasses of very good chilled wine (actually they gave us 4 glasses), use of beautiful pool, dry/wet sauna, hot tubs (salt water, pool also) to your heart content, and a bottle of wine to go home with - all for $149 + $50 tip (for 2 people). These days it's a pretty good price for all of the above. Lunch available upon request from Resort's restaurant - they bring it to you in a few minutes right to the pool side. Very nice and worthy experience, highly recommend!