OnsenQuest

Prefectures / Kanagawa

Hakone Kowakien Yunessun

箱根小涌園ユネッサン · Hakone Onsen

OK if covered (day visit)

Can you bathe here with a tattoo?

This is the question we built the site around, so we answer it per situation.

Visiting for the day

Yes, if you cover it up

Tattoos must be covered with a patch in the main baths.

Source: official website · checked 2026-08-28

How it scores

Every onsen on this site is scored on the same five things.

ViewWaterComfortSettingAccess

Verified by the editor

View2.5
Water2
Comfort2.5
Setting3.5
Access4.5
○Somewhere to sit — You can spend the day here
△Anything else nearby — Nearby, but off to one side

A swimsuit water park rather than an onsen, built for families and busy in season. Come for the slides and theme baths, and cross to Mori no Yu next door if you actually want to bathe naked in hot spring water.

Every onsen on this site is scored against the same written rubric. This score has been reviewed by the editor. The ones marked Visited were also bathed in personally.

The baths

Indoor bath

Swimsuit-required indoor spa zone (theme baths, water slides). Not a traditional naked-bathing onsen - see 'Motoyu Mori no Yu' for that.

Open to day visitors

Open-air bath

Swimsuit-required outdoor zone.

Open to day visitors

Practical details

Day visits
Yes — you can bathe without staying overnight.
Varies by season: August 9:00-19:00 (last entry 18:00); September weekdays 10:00-18:00 (last entry 17:00), September Sat/Sun/holidays 9:00-19:00 (last entry 18:00)
Day visit price
¥2,500
Variable pricing by date tier: adults 2,500 yen (tier A) / 2,800 yen (tier B) / 3,000 yen (tier C). Value recorded is tier A. A combined 'Yunessun & Mori no Yu' passport is 3,500-4,000 yen.
Staying overnight
Not confirmed
Getting there
Address is 1297 Ninotaira, Hakone-machi, in the Kowakidani area. Reached by Hakone Tozan Bus from Hakone-Yumoto or Odawara Station; a car is not required.
Official website
www.yunessun.com

Visit the official website ↗

Staying nearby

The links below are affiliate links — we may earn a commission if you book through them, at no extra cost to you. It never changes what we list or how we score it.

Why Agoda for Japan: it lists a lot of ryokan and small inns that the Western booking sites never picked up, and it usually prices Japanese properties in yen, so you are not paying a conversion spread on top of the room rate. Worth comparing before you book — the difference on a ryokan is often larger than you would expect.

About the day-pass link: Asoview is the main place day-use onsen in Japan sell entry tickets and discount coupons in advance. It is a Japanese-only site, so use your browser’s translation — you show the ticket on your phone at the door.

Getting in from the airport

The links below are affiliate links — we may earn a commission if you book through them, at no extra cost to you. It never changes what we list or how we score it.

Why not the train: the last leg to an onsen is usually a local bus with nowhere to put a suitcase. A fixed-price car is booked in English and quoted before you travel, tolls and fuel included.

What we have not confirmed

We would rather show a gap than guess.

More onsen in and around Hakone

Checked the same way: tattoo policy, private baths and day visits.

Lists for this area