Gem Day Spa is a boutique haven with two locations in upscale country club settings—though you don't have to be a member to enjoy star treatment. At Los Caballeros Racquet and Sports Club in Fountain Valley, amenities include towels, robes, and slippers, as well as use of the whirlpool for relaxing in before or after your treatment. At the Sea Cliff Country Club in Huntington Beach, make sure to stop by the gazebo room, where the sea breeze and salt air create the perfect atmosphere for a relaxing massage.