Spa Number Nine is a luxury wellness and fitness destination set within the family-owned boutique Hotel Firenze Number Nine, located at Via dei Conti 9 in central Florence, Italy. The spa blends relaxation with medical-grade treatments, offering massages, facials, medical cosmetics overseen by doctors, HI-FU technology, and Chinese reflexology. Thermal facilities include a sauna, Turkish bath, hydromassage tub, ice bath, and a counter-current swimming pool, enabling invigorating contrast therapy experiences. A state-of-the-art gym equipped with Technogym Artis machines, cardio and strength stations, and a Pilates reformer studio rounds out the active wellness offering. An in-spa 4K home theatre adds a unique sensory dimension. The venue is described as a pure luxury environment combining sensory rejuvenation, personalized wellbeing journeys, and proximity to Florence's historic landmarks.