The Opal – Luxury Urban Spa occupies 1,700 square metres on the rooftop of the Steigenberger Hotel Doha on Al Matar Street. Its thermal and bathing zone centres on a signature hammam and scrub experience, with a plunge pool and cryotherapy. A private pool terrace is reserved for women, and the hotel adds a rooftop pool and a top-floor gym. The spa opens daily 10:00 to 22:00.