This is a favorite sanctuary for San Francisco residents who know the Nob Hill Spa is divine — did we mention the fireplace lounge? Guests wrap themselves in plush robes to enjoy refreshments, healthy snacks, and menu items served at poolside chaise lounges where floor-to-ceiling windows enhance an infinity pool and city views. There are 10 treatment rooms, couples massages, facial and nail services, beauty treatments for gentlemen, a Zen relaxation room, saunas, steam rooms, and a whirlpool across three levels.