Relaxing — deep, immediate muscle release.
Rich in trace elements — gentle on the skin.
Soft water — natural, classic buoyancy.
Shigarai Onsen—Reed Hedge Spring—takes its name from the shigarai, a traditional Japanese fence or barrier constructed from woven reeds, a structure associated with the boundaries and thresholds of sacred precincts, gardens, and the agricultural margins of wetland landscapes where reed growth marks the edge between the cultivated and the natural. Simple alkaline waters provide the gentle, skin-softening mineral soak that forms the foundation of Japan's accessible thermal bathing tradition in Iwate Prefecture's northern Tohoku landscape, where volcanic springs serve communities across a region defined by heavy winters, deep forests, and the resilient cultural traditions of Japan's northern frontier. The reed hedge name suggests a spring that occupies the transitional zone between the natural and the managed, the wild thermal spring and the cultivated thermal facility, marked by the boundary-making imagery of woven reeds.