When you need a break from San Francisco's vibrant downtown, retreat to JW Marriott San Francisco Union Square, a reimagined luxury hotel. Enjoy exquisitely appointed rooms with refined furnishings and sleek, spa-inspired bathrooms at JW Marriott San Francisco Union Square. Give your energy a boost with an invigorating workout in the hotel's modern fitness center or enjoy fine dining at the delicious restaurant, Level III, featuring locally-sourced San Francisco cuisine and artisanal cocktails.