The Marker San Francisco is a boutique hotel located near Union Square. It features a wellness center that offers a range of services to promote relaxation and well-being. Guests can enjoy spa treatments, including massages, facials, and body wraps. The center also includes a fitness center and a rooftop terrace with panoramic views of the city. With its stylish accommodations and convenient location, The Marker San Francisco is a top choice for those seeking a wellness retreat in the city.