Yamagaso is a 4-star, adults-only retreat in Hakone, Japan. Nestled at Yumoto 592, it sits about 4,9mi from Hakone’s city center, offering a peaceful base for onsen hopping and scenic walks.

Inside, rooms offer air conditioning, private entrances, and non-smoking layouts with garden or terrace views. The property features free private parking and Parking On Site (free), plus free Wi-Fi, a free shuttle service, and a 24-hour front desk. Spa and wellness options include a hot spring bath (free), an on-site spa, and massage services available for an extra charge; room service and meeting/banquet facilities are also available for an extra fee. Additional touches include a patio, garden, free toiletries, a bidet, and a bathtub.

This property has 160 reviews and is located at Yumoto 592 in Hakone, Japan. A tranquil onsen escape with convenient amenities awaits.

At this serene retreat, the day can begin with a free hot spring bath, followed by spa options on site, with massage services available for an extra charge. Rooms are tuned for comfort with air conditioning, private entrances, and non-smoking layouts, each opening to garden or terrace views that invite quiet moments between adventures. A private patio and surrounding garden add to the sense of seclusion, while thoughtful touches like free toiletries, a bidet, and a bathtub complete the relaxing vibe.

Practical perks keep travelers on the move: a free shuttle service, free on-site parking, and free Wi-Fi ensure easy access around Hakone, with a 24-hour front desk ready to help around the clock. Payment is flexible, with cash accepted and Mastercard or Visa welcomed on site.

Room options include a Japanese Style Quadruple room, 355 square feet, non-smoking, accommodating 2 adults and 1 child with four futon mats. A Room Selected At Check In is listed as accommodating 2 adults (room type unknown, non-smoking). Another option is a Double Room with Sea View, accommodating 2 adults.