Want to Soak in Your Own Room?
10 Hakone Ryokan with Private Open-Air Baths
Gora Kadan to Hakone Tent · From ¥3,500

If you're choosing one Hakone ryokan to splurge on, this is it — Hakone Gora Kadan scores 9.5 from 643+ Booking reviews, holds Relais & Châteaux membership, and earned Michelin's 3 Keys 2024, the highest ranking in Asia. It was built on the grounds of a former Imperial summer villa in central Gora. Several suite categories come with a private rotenburo set in their own small Japanese garden — you step straight out of your room and into the bath, hearing birds and wind in the trees instead of the city. The kaiseki dinner changes with the season across two distinct courses, and breakfast is included. There's also a spa and a shared open-air bath if you want a change of scene. Honestly, ¥120K+ isn't for everyone — but if you want a private open-air bath at a level the whole of Asia ranks #1, this is the one. Ideal for a honeymoon or a milestone anniversary.

Gora Hanaougi has the clearest pitch in this entire list — every single room has a private open-air bath on its terrace, no exceptions. It scores 9.9 on Trip.com and ranks #1 in Hakone-machi on TripAdvisor. Soaking in your own room, you look straight out at full Hakone mountain views. The water here is an alkaline hot spring from the Gora source that feels as smooth as natural soap and genuinely softens the skin. It sits above Gora next to Sounzan Station, so it's quieter than the town below, and there's a newer building, Madoka no Mori, if you prefer it. Kaiseki dinner and breakfast are included, and guests describe the service in one voice as attentive to every detail. If you want a guaranteed private bath without gambling on room type, this is the safest choice in the list.

Hakone Ginyu is a boutique ryokan perched on a clifftop looking out over the Hakone valley — it scores 9.8 on Trip.com, and like Gora Hanaougi, every room has its own private open-air bath. Sink into the hot water and the open valley spreads out in front of you. What sets it apart is the design: it blends Balinese-style luxury with traditional Japanese ryokan service, using dark timber and warm low lighting to feel like a tropical resort dropped into the Japanese mountains. Each room has its own terrace, bath, bathroom and dining nook. Kaiseki and breakfast are included. Guests say the same thing again and again — being able to soak without worrying who's watching is what stays with them. The only catch is that it's genuinely hard to book: few rooms, and beloved by onsen regulars.

Hakone Suishoen (also written Suihoen) is a small luxury resort with 23 suites, and every single one has its own private open-air bath — it scores 9.6 on Trip.com. What guests love most is that the rooms are noticeably larger than a typical Japanese ryokan, with a design that blends traditional Japanese with the contemporary, so it feels upscale without being cramped. You can soak in your own bath all day and never see another guest. Reviews repeatedly mention 'excellent room, fantastic dinner, incredible private hot-spring bath' as the package that just works. At ¥85K it's meaningfully more accessible than the top three while still giving you a private bath in every room. It's ideal for travellers who want the guaranteed in-room rotenburo but would rather not touch six figures plus.

Hakone Kowakien Ten-yu is an onsen ryokan where every room has its own private open-air bath, and its standout is a number that doesn't lie — 9.1 on Booking from 1,279 reviews plus 9.4 on Trip.com from 739 reviews, the largest review sample of any private-rotenburo ryokan in Hakone. That means a lot of people stay here and still rate it highly. Each room has a terrace rotenburo, and on top of that there's the 2-level Tenku-no-Yu 'sky baths' with mountain views that alternate by gender so you can enjoy the shared-bath experience too. Breakfast buffet is included. Being larger than a boutique ryokan, it has fuller facilities — restaurants, a spacious lobby. If you want a guaranteed private bath in every room from ¥55K, backed by thousands of reviews, this is the safest pick in the mid tier.

Kinnotake Tonosawa is an adults-only ryokan (no children) built for couples or anyone who wants complete quiet — Booking gives it 9.4 from couples. It sits beside a river among a bamboo grove in Tonosawa, just one stop past Hakone-Yumoto, so it's easier to reach than the properties tucked deeper in the hills. The draw: every room has a private rotenburo backed by bamboo, and you can adjust the water temperature yourself. Guests say 'I've never been taken care of this well anywhere' — the service is genuinely attentive, and being adults-only keeps it peaceful with no background noise. Kaiseki dinner and breakfast are included. At ¥115K it's firmly luxury tier, but it delivers a level of privacy and grown-up atmosphere that many places can't. Ideal for a honeymoon or a couples' trip.

Hakone Airu is a Balinese-style ryokan where every room has a private mountain-view open-air bath — and its strength is the review numbers: 8.9 on Booking from 1,576 reviews, a huge sample for a ryokan that puts a private bath in every room, meaning plenty of real guests stay and leave happy. The vibe is less formal than a classic ryokan — warm, dim Balinese lighting and tropical accents — which suits travellers who want to soak and relax without the formality and etiquette of a traditional inn. It sits in the Sengokuhara forest, so it's quiet with full mountain views. Kaiseki and breakfast are included. At ¥45K it's the best value among the every-room-has-a-bath group, ideal for mid-budget travellers who want a genuine private rotenburo without paying six figures.

Honestly, The Fujiya Hotel is on this list because it's a legend — founded in 1878, it's one of the oldest Western-style hotels in Japan, John Lennon stayed here, and four of its buildings are registered cultural heritage. It scores 9.2 from 2,102 reviews, the largest sample in this roundup. To be straight with you: the Fujiya does not have a private rotenburo in every room — its main draw is the legendary shared onsen and the historic architecture. If you want a hot-spring bath in your room here, you need to choose a Forest Wing room or one of the suites listed with an in-room bath. The appeal is sleeping inside living history — a dining room ceiling painted with 636 images, a Japanese garden, a classic French restaurant. From ¥25K for a heritage room it's very accessible. It suits travellers who value heritage and onsen over a guaranteed private bath in every room.

Hakone Kowakien Mikawaya Ryokan is a classic inn founded back in 1883 — it gives you the genuine traditional Japanese ryokan atmosphere. Booking 8.8 · Trip 9.3 from 115 reviews. It doesn't guarantee a private bath in every room like the top group — to be straight, it has 10 rooms with a private open-air bath, 3 rooms with an indoor bath, and one reservable private bath outside the rooms. If you want an in-room rotenburo, you need to choose an 'open-air bath' room category clearly. The charm is the traditional Japanese garden and the feel of a 140-year-old ryokan at a more accessible price than the luxury group. Kaiseki and breakfast are included. It suits travellers who want to try a genuine classic ryokan on a manageable budget, with the option to upgrade to an open-air-bath room if privacy matters.

Hakone Tent closes out the list to prove a point — you don't have to spend six figures to soak in a private onsen. It's a guesthouse from ¥3,500 per person, but it has two kashikiri onsen baths (a stone bath and a pine bath) that you reserve for just yourself or a couple. It scores 8.8 from 1,321 reviews. To be honest, this isn't an in-room rotenburo like the nine above — it's a private bath you book a time slot for, so you soak without sharing, which is exactly what budget travellers who still want privacy are after. The bonus is the social side: a draft beer-and-sake bar plus takoyaki-making nights where guests actually talk to each other, with a wonderfully laid-back feel. It's a 3-minute walk from Gora Station, easier to reach than many of the luxury ryokan. Ideal for backpackers, solo travellers, or anyone trying Hakone for the first time without burning the budget.