Onsen OniOnsen Oni

Search Onsen Oni

Search onsen, areas, prefectures and pages.

Ocean Spa Fuua

オーシャンスパ Fuuaオーシャンスパ Fuua

Ocean-view standing open-air bath at Atami's largest day spa

Bathing Complex
Chubu·Shizuoka

Day Use

Yes
10:00–22:00

Closed 29-30 Jun 2026 / 28-29 Sep 2026 / 5-6 Jan 2027, plus other unscheduled closures (see the calendar PDF).

¥3,080

Weekday adult ¥3,080 / child ¥2,310 (incl. facility use, yukata, towel); weekend/holiday surcharge +¥330 adults +¥220 children. After 17:00: adult ¥2,310 weekday / ¥2,640 weekend. After 20:00 (bath only): adult ¥1,110 weekday / ¥1,440 weekend. Hot spring tax ¥150 extra for adults.

Bathing & Water

Natural onsen water

Uses natural hot spring water

Outdoor BathYes

Open-air outdoor bath

Indoor BathYes

Enclosed indoor bathing area

SaunaYes

Sauna room of any kind

Bathing Arrangements

Private BathNo

A private bath you can reserve for yourself or your group

Mixed BathingNo

Shared bathing area for all genders

Policies & Services

TattooNo

Allows entry with visible tattoos

KidsWith Conditions

Welcomes children and families

Ages 0-3 not admitted. Ages 4-elementary: same-gender adult guardian (20+) required; standing outdoor bath, saunas, and rock baths restricted.

DiningYes

A restaurant or dining room open to visitors, not only meals for overnight guests

WashingYes

Shower, wash stations, soap and shampoo provided

TowelsYes

Towels to rent or borrow at the desk

Rest AreaYes

Relaxation space for after bathing

ParkingYes

On-site or nearby parking available

Water treatment

Treated and recirculated(partial disclosure)
from Article 18 disclosure
  • Added water
    Yes
  • Reheated
    No
  • Recirculated
    No
  • Disinfected
    Yes
    モノクロラミン
  • Bath additives
    Not disclosed

熱海331号泉

Atami Spring No. 331
塩
Chloride
Hot source · 54°C
Known good for
  • Warmingcold sensitivity
  • Aches & jointsstiff shoulders
  • Smooth skindry, rough skin

A calcium-sodium chloride spring drawn from a hot 54.1 °C source by the sea. Richly mineralized at 19.14 g/kg dissolved solids, it is a dense, salt-forward chloride water that leaves a mineral film on the skin and keeps the body warm long after the bath. Weakly alkaline, so it bathes soft on the skin. At the bath it is diluted with water and disinfected with monochloramine.

Analyzed Aug 1, 2016·東邦化工建設株式会社 三島分析センター·Cert no. 静岡県第4号

Explore the water

Views

Sea

Highlights

Ganbanyoku

About

A large day-use spa complex at the Atami Bay Resort, one of the bigger bathing facilities in Atami. The signature spot is a standing open-air bath (rotenburo) about 25 meters long with an unobstructed view over Sagami Bay, taking in Hatsushima island, the Manazuru Peninsula, and the sunset on clear evenings. Inside there are three sauna rooms at different temperatures, ganbanyoku (岩盤浴) heated-stone floor baths, eight lounges, and a restaurant.

Loading map…

5.0

1 review

5
1
4
0
3
0
2
0
1
0

Anastasia

1 year ago

Following the advice of the wonderful @whenintokyo, today I visited this spa. A huge complex in the style of "La Aqua," whose main highlight is an infinity rotenburo with a view of the sea and Atami. In reality it turned out even more beautiful than in the photos: when you sit, the water overflows the edge creating an infinity effect, and it feels like you're swimming in a hot sea. Besides the sea, you can see all of Atami, people walking their dogs along the promenade, and the crews of ships passing by. I suspect that from Atami, the promenade, and from the ships, the rotenburo is equally well visible. But that doesn't stop the women from enjoying the views. It's crowded! From this I conclude that the importance of fences in women's rotenburo is overrated and they shouldn't be built everywhere, blocking women from enjoying the scenery.

SM
Sergey M
1 year ago· edited

233. Ocean Spa Fuua, Atami ★★★ A hot spring complex in Atami with a great infinity onsen. Open from 10:00 to 22:00, prices range from 1760 to 3560 depending on the day and time. There are stone baths, places to chill, and more, but I did not use those. 1. Outdoor area. 1.1. The infinity onsen itself, the bath is fairly large and spacious, and deep. The edge of the bath is built with some extra room, so you can lean your body forward on it and stand there looking at the water. At the same time, nothing stops you from moving away from the front edge and soaking in the bath half-reclined in the old style. The water is clear, temperature 40. 1.2. A small rectangular bath set apart, also with a view of the bay. The water is clear, temperature 40. 2. Indoor area. It is comfortable to breathe, and the glass does not fog up, so the view is excellent. 2.1. In practice, an indoor infinity bath. The edge of the bath is sharp, and the glass is clear with no steam, so the infinity onsen from the indoor bath cuts into the view of the infinity onsen from the outdoor bath, which in turn cuts into the bay with an infinity view. A very cool and pleasant combo. The water is clear, temperature 40. 2.2. Carbonated silk bath. White with lime in color, temperature 40. 2.3. Sauna. 2.4. Cold bath. A very cool place. Highly recommended, in fact a must-visit when visiting Atami. 08.11.2024

1
2
3
4
5
6
7
8

Last updated October 12, 2026