Reservations will be accepted from 15 July via online or by telephone.
Online Room Reservation
Book a Room
Telephone Reservation
TEL. +81 460 83 3122
THERMAL SPRING SPA
For centuries, Hakone has been revered as one of Japan's most celebrated hot spring destinations, a place where travelers have sought rest, renewal, and wellbeing amidst nature's healing abundance. Embraced by this rich landscape, Thermal Spring SPA offers a haven where natural thermal waters drawn from the hotel's own onsen source meet contemporary wellness experiences.
Surrounded by the tranquility of the forest, the mind gradually unwinds and the body rediscovers its natural equilibrium. Guests are invited to reconnect with the rhythms of nature, embrace moments of stillness, and experience a transformative sense of restoration.
Rooted in the healing power of water and the beauty of the surrounding landscape, Thermal Spring SPA offers a journey of renewal that nurtures body, mind and spirit, leaving guests refreshed, restored, and deeply reconnected with themselves.
Thermal Spring
Accompanied by the gentle murmur of the Jakotsu River, Thermal Spring unfolds as a serene sanctuary embraced by nature's beauty. Fed by the mineral-rich waters of Kowakudani Onsen drawn from the hotel's own source, the baths are renowned for their ability to soothe the body, nourish the skin, and impart a lasting sense of warmth and wellbeing.
Beyond the tranquil indoor baths, discover a distinctive infinity-style outdoor standing bath, where sky, forest and water appear to merge seamlessly as one. Surrounded by Hakone's ever-changing landscape, the boundaries between nature and the senses gently dissolve.
In an atmosphere of openness and serenity, immerse yourself in the restorative energy of the land and experience moments of profound relaxation found nowhere else.
SPA Treatments
Thermal Spring SPA invites guests to unwind in one of five private treatment rooms, including a dedicated couples' suite, each designed as a peaceful retreat immersed in absolute tranquility.
Combining the restorative benefits of natural thermal waters with our signature treatments, every experience is thoughtfully crafted as a bespoke spa journey unique to HOTEL THE MITSUI HAKONE. Guided by the rhythms of nature and a holistic approach to wellbeing, guests are led toward profound relaxation, renewal and restoration.
Gym
Within a light-filled and expansive environment, the fitness studio invites you to move at your own pace and restore your natural vitality. Far removed from daily demands, rediscover a renewed sense of balance, energy and holistic wellbeing.
Contact Us
TEL. +81 460 83 3111 (Main)
Contact Us
Reservations will be accepted from 15 July via online or by telephone.
Online Room Reservation
Book a RoomTelephone Reservation
TEL. +81 460 83 3122