Loaded with major ions — the essential minerals (Ca, Mg).
Buoyancy
Standard buoyancy
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Soft water — natural, classic buoyancy.
BicarbonatesSodiumCalcium
Caldas de Canavezes, in Porto district, Portugal, takes its name from its bicarbonate thermal waters, which emerge at 40°C. The site offers an indoor bath and an outdoor bath, set in the rural landscape of northern Portugal.
Insider tip — Caldas de Canavezes is one of northern Portugal's most celebrated thermal resorts, perched above the Tâmega River valley in the Porto district. The bicarbonate-rich waters emerge at a consistent 40°C, offering a soothing soak year-round. The grand early-20th-century thermal palace retains its Belle Époque grandeur with ornate tile facades. Book a combined hydrotherapy and massage session for the full classical Portuguese spa experience.