Loaded with major ions — the essential minerals (Ca, Mg).
Buoyancy
Effortless float
LowHigh
Dense, salty water — you float without effort.
SodiumChloruresBrome
Shiogama, a coastal city north of Sendai in Miyagi Prefecture, is the ceremonial gateway to the scenic Matsushima archipelago — one of Japan's three classic views — and home to the important Shiogama Shrine, one of the oldest and most venerated Shinto shrines in the entire Tohoku region. Shiogama Onsen Miyagi offers chloride-enriched thermal baths reflecting the city's deep maritime and salt-production heritage, soothing the body with mineral-rich waters on the edge of Matsushima Bay. The city is also renowned as one of Japan's premier tuna fishing ports, its celebrated sushi restaurants drawing seafood lovers from across the country.
Insider tip — Shiogama, the port city north of Sendai on Matsushima Bay, is primarily known as Japan's leading wholesale tuna market and the gateway to the Matsushima pine islands. Its sodium-chloride onsen waters are extracted from deep coastal sediments and have a warmth-retaining salinity that complements the sea-facing rotenburo views over the bay. Combining a morning visit to the tuna auction at dawn with a thermal soak by mid-morning is a quintessentially local Shiogama experience.
