Harmony Spa – Aria Hotel Budapest

Harmony Spa is the spa of the music-themed Aria Hotel beside St Stephen's Basilica. Its wellness centre has a Finnish sauna, an aromatic steam room and an infrared sauna next to a 35-foot heated pool, a jacuzzi and a fitness room. Hotel guests use it free; local visitors get complimentary half-day access when they book any spa treatment, and day passes are sold as gift vouchers. Signature treatments include lavender and paprika body wraps inspired by Hungarian ingredients.