A world of wellness awaits at these top-notch San Diego spas. Relax at the outdoor Spa Pool at Rancho Valencia Resort & Spa. PHOTO COURTESY OF BRAND The Spa at Rancho Valencia Welcome to The Spa at ...

San Diego has been named as the world's most-relaxing city in a new global ranking, citing its sunshine, abundance of green spaces, and wide selection of spas as key reasons it tops the list.