Matsuzakaya Honten

Matsuzakaya Honten has occupied the same forest clearing at Ashinoyu since 1662, long enough to be painted by Utagawa Hiroshige, to host the political architects of the Meiji era, and to outlast nearly every rival in Hakone's competitive ryokan landscape. The address itself carries meaning: Ashinoyu was one of the Hakone Seven Onsen of the Edo period, a bathing culture stretching back over 1,200 years to the Nara era, and Matsuzakaya has been its custodian for more than three and a half centuries.

The property's supreme distinction is the onsen. A private spring beneath the estate delivers over 200 litres per minute of pure kakenagashi water containing all three of Japan's recognised skin-quality mineral types: sulfur, sulfate, and sodium bicarbonate in a single source. This convergence is genuinely rare. The water's colour shifts with air temperature and atmospheric pressure, from milky white to a faint sulphurous gold, and the change is unmediated by additives or recirculation. Five dedicated kashikiri facilities and ten in-room open-air baths distribute this water across the estate.

The 2017 renovation was undertaken with restraint. Six architecturally distinct pavilions sit across a 13,200-square-metre estate, half of which is given over to a moss garden designed to be read from each building's window. Meiji-period structural elements were preserved rather than smoothed away, and the common spaces, including an irori hearth lounge and a bar, wear their layers of history without the contrivance that attends lesser renovations.

Dinner in the restaurant En takes the form of Shukuba Kaiseki, a meal conceived around Hakone's Edo-era post-town culture and the encounter with Meiji-era outside influence. Kanagawa Ashigara beef, Sagami Bay fish dried overnight, and Odawara Soga plums at breakfast anchor the table in its specific geography. Multiple guests across booking platforms have described the dinner as comparable in quality to a Michelin-starred experience, and the morning meal, quieter and more austere, rewards those who stay at the table long enough to let it settle.

The estate's pathways between pavilions rise and descend on uneven stone, not grounds for effortless wandering. Those at ease on the terrain will arrive at a rotenburo where the water surfaces pale against the darkness, its colour already changing, and the cedars above it hold perfectly still.