Aqualis Thermal Baths

Aqualis Thermal Baths is a modern thermal spa in Chaudfontaine, a small commune in the province of Liège in the Vesdre River valley of eastern Belgium, where Belgium's only naturally warm spring emerges at 37°C — the precise temperature of the human body — from the ancient Devonian limestone formations of the Ardennes, creating what is scientifically classified as one of Western Europe's unique naturally thermomesothermal springs. The thermal waters of Chaudfontaine, marketed internationally as a premium mineral water brand, have been recognized for therapeutic use since at least the 17th century and the springs have served as a source of bottled mineral water for centuries. The confluence of naturally body-temperature mineral water emerging from ancient limestone, Belgium's only natural thermal source, and the verdant Vesdre valley setting makes Aqualis Chaudfontaine a uniquely Belgian therapeutic and wellness experience.