Therme Group RHTG AG is an international developer, owner, and operator of large-scale wellbeing destinations that combine thermal bathing, spa and sauna facilities, wellness, cultural programming and sustainable architecture. Headquartered in Vienna, the company operates some of Europe's largest thermal facilities and is currently expanding into North America, Asia, and the Middle East.
Insider tip — This thermal spa on the island of Kos sits in a region with deep associations with ancient wellness — the island was the birthplace of Hippocrates and home to the ancient Asclepion sanctuary. The warm mineral waters emerging from the volcanic geology of the Dodecanese carry on a tradition of bathing that predates the modern spa concept by two and a half millennia. The Aegean setting, with its vivid blue waters and strong sea breezes, makes the outdoor thermal pools especially inviting in spring and autumn.