Budapest has several nicknames, like the Paris of East, or the Pearl of the Danube, and also the City of Spas.
Budapest has a number of great baths, spas and outdoor pools worth visiting. Thanks to a unique geological feature, Budapest 'sits' on over 100 thermal springs that feed the city's famous bathhouses. Thermal baths in Budapest usually have one or two main pools and several smaller pools with different water temperatures. Many baths also have normal swimming pools and outdoor pools. But, thermal baths in Budapest offer more than just pools, there are saunas, steam baths, aroma cabins, massage parlors as well as on-site health care professionals who offer physiotherapy and aqua-therapy.
With that being said, you don't have to have any ailments to appreciate the relaxing waters of Budapest. Thermal baths are open to the general public and are a great way to relax and wind down after a day of touring the city.