Sources Thermales d'Ikaria

Ikaria is a mountainous Aegean island in the North Aegean regional unit of Greece, internationally recognized as one of the world's five Blue Zones — areas where people statistically live among the longest and healthiest lives — with a remarkable proportion of inhabitants regularly reaching 90 and 100 years of age. The naturally radioactive (radon) thermal springs at Therma on the northern coast of Ikaria, used for over two millennia, are part of the island's deep-rooted bathing tradition, alongside the Mediterranean diet, physical activity, social cohesion, and afternoon nap traditions of Ikarian culture. The radon-rich spring waters, emerging at natural temperatures and pooling in simple stone basins directly at the sea's edge, represent the most minimalist and authentic thermal experience in Greece — used by local elders in a tradition unchanged since antiquity.