Hakone Kowakien TEN-YU: The Onsen Ryokan Worth the Splurge
Every room at Hakone Kowakien TEN-YU has a private open-air onsen bath fed by natural hot springs. Here is the full breakdown of room types, pricing, and how we think about the value.
There are ryokans you book because they fit the budget, and there are ryokans you bookmark for years and finally pull the trigger on. Hakone Kowakien TEN-YU is the second kind. We first saw it while planning our November 2023 trip to Hakone, watched it cross the $400-per-night line and moved on, and kept coming back to it. If you are planning a Hakone stay and want the full onsen experience with Mount Fuji in the distance and your own open-air bath, this is the one.
Book Hakone Kowakien TEN-YU on Klook with code ADAMANDLINDSKLOOK for savings. Rates start from around $318 per night depending on room type and dates.
What Hakone Kowakien TEN-YU actually is
TEN-YU is the premium wing of the Hakone Kowakien resort complex in Ninotaira, a forested area about midway between Hakone-Yumoto station and Lake Ashi. The larger Kowakien complex has been around since the 1920s, but TEN-YU is the high-end tier: every room includes either an open-air onsen bath on your own private terrace, or an indoor/outdoor combination. It is a 5-star property by Klook's rating, and it earns that rating through what it delivers in-room, not through flashy lobbies or resort-style amenities.
The address is 1297 Ninotaira, which puts it about 15 minutes by car or bus from Hakone-Yumoto and about 20 minutes from Gora. It is not in a convenient walking-distance location, but that is by design. The whole point of this kind of stay is to arrive, change into your yukata, and not leave until checkout.
Room types and pricing
TEN-YU has a specific room lineup and the naming on Klook can be a little confusing because the same base room type appears at slightly different price points depending on what meal inclusions are bundled. Here is how the rooms break down based on current Klook listings:
| Room type | From (per night) | Notes |
|---|---|---|
| Superior Room with Open-Air Onsen Bath | ~$318 | Breakfast plan; futons for 3+ guests |
| Superior Room with Open-Air Bath | ~$348 | Western-style beds or Japanese-style available |
| Japanese-style Room with Open-Air Bath | ~$364 | Futon sleeping, non-smoking |
| Japanese-style w/ Open-Air Bath, 2 Beds | ~$364 | Combines tatami aesthetic with beds |
| Superior Room, Open-Air Bath, Breakfast Included | ~$370 | Breakfast explicitly bundled |
The price spread across these rooms is not enormous. At this property, the meaningful distinction is between the Superior rooms (slightly more Western in feel, with beds as the default) and the Japanese-style rooms (futons, tatami, the full ryokan experience). Both include an open-air bath on the terrace. If it is your first dedicated onsen ryokan stay and you want the complete picture, the Japanese-style room is worth the slight premium.
What the open-air bath actually involves
Every room at TEN-YU has a rotenburo, the Japanese term for an outdoor onsen bath, accessible directly from the room. You are not sharing a communal facility (though those exist too in the building). The water is genuine natural hot spring water drawn from Hakone's geothermal sources, which means it has the slightly mineral, sulfuric quality you expect from a proper Hakone onsen rather than the heated tap water you sometimes get at lower-tier properties.
The setup varies slightly by room type: some have the bath on an outdoor wooden deck, some are partially enclosed. All are private to your room. If you have young kids along, this is a meaningful advantage over communal baths where the rules around children can be complex. You fill it, you use it, you drain it. The front desk can explain the process at check-in.
Room facilities
All rooms include the standard list for a property in this category: TV, heating, air conditioning, refrigerator, telephone, bathtub (in addition to the outdoor bath), toiletries, hairdryer, in-room safe, and complimentary bottled water. Turndown service is included. There is no surprises checklist here. The rooms are not large by Western luxury hotel standards, which is typical of high-end Japanese ryokan design, but they are carefully finished and the terrace bath is the point.
Getting to TEN-YU from Tokyo
Hakone is about 90 minutes from Shinjuku by the Romancecar express train, which runs directly to Hakone-Yumoto without transfers. We covered this route in detail in our Hakone and Mount Fuji family guide and it remains the best option for most travelers. From Hakone-Yumoto, TEN-YU is accessible by taxi or the Kowakien shuttle if available, or by the Hakone Tozan bus toward Kowakidani stop. It is not walking distance from the station.
If you are building a broader Japan itinerary, the Klook Hakone Free Pass covers most transport in the Hakone area including the ropeway, boats on Lake Ashi, and buses, and can be combined with the Romancecar booking. Our full Hakone video below covers how we navigated the area with three kids in 2023.
What Hakone itself offers around the property
The Kowakien complex around TEN-YU includes Yunessun, a water park fed by real onsen water, which is a genuinely unusual combination and something that landed well with our kids on our November 2023 visit. You can also access the communal public baths in the complex if you want a larger soaking experience beyond the in-room bath. The surrounding Ninotaira area is forested and quiet, with walking paths through the hills.
Lake Ashi, the most photographed spot in Hakone with Mount Fuji views, is about 20 minutes away. The Hakone Open Air Museum, which is excellent and genuinely works for all ages, is about 10 minutes from the property. Neither requires a car if you use the Hakone area buses or the ropeway.
Is TEN-YU worth it for families with kids?
This is the honest question for anyone reading this who travels the way we do. The $300-400 per night price point is real, and it puts this in splurge territory for most family travel budgets. Here is how we think about it: if you are in Japan for two weeks and you want one proper ryokan night, TEN-YU earns its place. The private onsen bath makes the experience accessible for families in a way that communal bath-only properties are not. The kids do not need to conform to onsen rules if you are using your own bath on the terrace.
If you want a full kaiseki dinner and the ceremonial multi-course evening meal experience, verify what is included in your rate before booking. Some rates include breakfast only, and dinner can add considerably to the total. The breakfast-included rates on Klook are typically good value given what Japanese ryokan breakfasts involve.
Booking through Klook
We book most Japan accommodation and activities through Klook because the pricing is competitive, the cancellation policies are clearly listed, and the booking process is simpler than dealing with Japanese hotel sites directly when you do not read Japanese. TEN-YU on Klook shows free cancellation before redemption on several room types, which gives you flexibility if plans change.
Use code ADAMANDLINDSKLOOK at checkout for savings on the booking. Rates vary by date, room type, and meal inclusion, so it is worth checking a few combinations before committing.
Hakone Kowakien TEN-YU - Private onsen bath in every room, 5-star rating, Hakone's Ninotaira district Check rates on Klook Use Code ADAMANDLINDSKLOOK
Frequently asked questions
Does every room at Hakone Kowakien TEN-YU have a private onsen bath?
Yes. Every room category at TEN-YU includes a private open-air onsen bath on the room's terrace. The water is genuine Hakone natural hot spring water. There are also communal facilities in the wider Kowakien complex, but the in-room bath is included regardless of which room type you book.
What is the difference between the Superior Room and the Japanese-style room?
The Superior rooms are more Western in style, typically with beds as the sleeping arrangement. The Japanese-style rooms use futon bedding on tatami flooring, which is the traditional ryokan experience. Both include a private open-air bath. The Japanese-style rooms are slightly pricier but offer a more authentic ryokan feel.
How do you get to TEN-YU from Tokyo?
Take the Romancecar express from Shinjuku to Hakone-Yumoto, about 90 minutes. From Hakone-Yumoto, TEN-YU is reachable by taxi (10-15 minutes) or the Hakone Tozan bus toward Kowakidani. The property is at 1297 Ninotaira in central Hakone. The Hakone Free Pass on Klook covers most local transport if you plan to explore the wider area.
Is breakfast included at TEN-YU?
It depends on the rate you book. Some room types on Klook explicitly include breakfast, others are room-only or specify a breakfast plan. Check the rate details before booking, as the breakfast-included rates are usually good value given the quality of a Japanese ryokan breakfast.
Is Hakone Kowakien TEN-YU good for families with young children?
Yes, particularly because the private in-room onsen bath removes the communal bath complications that can arise with young kids (rules around children in public baths vary by property). The nearby Yunessun water park in the Kowakien complex is also well-suited for families. The property itself is quiet and not designed around entertainment amenities, so it works best when the goal is to slow down for a night rather than keep kids active.
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- Japan activities on Klook: what we actually book
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- Klook Kansai pass: what is worth it
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