What is the biggest spa in the world?
Discover your holiday resort therme erding, world’s largest spa. Whether wholesome baths in thermal water, unique attractions about heat and health, thrilling fun on 28 slides or adventure in the wavepool area. For fans of historical romance novels, it’s not too much of a surprise that bath came in first place. Not only is it the most spa-dense city in the world, but it also ranks high for spa-related searches and luxury spa offerings.