THE ONE Boutique Hotel & SPA Rome

THE ONE Boutique Hotel & SPA Rome offers a sauna at the heart of its full-service spa, in a boutique property on Via del Traforo, just a short walk from the Trevi Fountain and the Spanish Steps. The sauna is open to all guests on a public access basis, providing an intimate thermal experience that matches the hotel's small-scale, design-led atmosphere. The boutique format keeps the wellness floor calm. The broader spa at THE ONE pairs the sauna with a small conference space and the unhurried rhythm of a hotel that prioritises atmosphere over scale. The recommended approach is simple: a sauna session after a long day exploring central Rome, a quiet rest, perhaps a second session before heading out for dinner. The Quirinale, the Trevi area, and the Forum are all within walking distance, which makes the sauna a natural close to a day on Rome's most iconic streets. For a Rome stay that pairs central-historic positioning with a focused wellness floor at boutique scale, THE ONE Boutique Hotel & SPA is a confident pick. The sauna ritual here is small in footprint but strong in atmosphere.