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Hotel New Akao OCEAN WING

ホテルニューアカオホテルニューアカオ

Lodging
Chubu·Shizuoka

Day Use

Yes
13:00–18:00

From July 18 to August 31, day-use hours shift to 12:00-17:00 (last entry 16:00). Each bath keeps its own separate opening hours beyond the general day-use window, so check before you go.

¥2,500

Weekday day-use entry is 2,500 yen for adults and 1,000 yen for children; weekends, holidays and peak dates (Jul 18-Aug 31 and Dec 28-Jan 5) are 3,000 yen and 1,500 yen. Face and bath towel rental is included free. The adult rate applies from junior-high age, the child rate from age 4 through elementary school.

Bathing & Water

Natural onsen water

Uses natural hot spring water

Outdoor BathYes

Open-air outdoor bath

Indoor BathYes

Enclosed indoor bathing area

SaunaYes

Dry heat sauna room

Sauna mentioned by a day-use visitor review; not confirmed on the official site.

Cold BathNo

Cold water plunge bath, typically used after sauna

Capabilities

Private BathYes

Private bath available for day-use visitors or hotel guests to reserve

Two reservable private baths (Sora, Tsuki), 6,000 yen per 60 minutes.

Mixed BathingNo

Shared bathing area for all genders

Policies & Services

TattooYes

Allows entry with visible tattoos

KidsYes

Welcomes children and families

Extensive family/kids amenities (Kids Park, kids menus, baby gear rental); day-use bathing for elementary-age children requires a same-sex guardian.

DiningYes

Restaurant or dining open to visitors (not just hotel meal plans)

TowelsYes

Towels available to rent or borrow

Free for day-use bathers; overnight guests bring towels from their room.

Rest AreaYes

Relaxation space for after bathing

ParkingYes

On-site or nearby parking available

Water treatment

Treated and recirculated
from Article 18 disclosure
  • Added water
    Yes
  • Reheated
    Yes
  • Recirculated
    Yes
  • Disinfected
    Yes
    塩素系薬剤
  • Bath additives
    No

熱海353号泉(混源)

Atami Spring No. 353 (Blended)

Operated by · ホテルニューアカオ

Mixed source

Chloride
Hot source · 55°C
Known good for
  • Warmingcold sensitivity
  • Aches & jointsstiff shoulders
  • Smooth skindry, rough skin

Atami Spring No. 353 is a blended sodium-calcium chloride source emerging at 55.2 °C as a hot, hypertonic water. With 19.74 g/kg of dissolved solids it sits squarely in the richly mineralized band — body and heat-retention are noticeable, and a faint mineral film tends to linger on the skin afterwards. Weakly alkaline, so the feel on the skin stays soft despite the strong mineralization.

Analyzed Feb 28, 2018·一般財団法人 静岡県生活科学検査センター

Explore the water

Views

Sea
City

About

Hotel New Akao is a large clifftop resort above Atami's coast with three separate onsen baths spread across its two wings. Sparium Nishiki (スパリウムニシキ) is an outdoor bath built infinity-style so the water seems to merge with the sea, with the tubs stepped like a terraced field so bathers aren't looking straight at each other. Saikai (彩海) is an indoor bath at the end of a lantern-lit corridor that smells of hinoki. Namine (波音) sits just five meters from the sea, so you bathe to the sound of the waves. Two smaller baths, Sora (宙) and Tsuki (月), can be booked privately by the hour for a family or a couple. The spring water has a light salty edge, typical this close to the coast. It's an older, Showa-era hotel with a maze-like layout, so getting between rooms and the baths takes some walking, but the sea and city views from the water are what stand out.

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SM
Sergey M
1 year ago

232. Hotel New Akao, Atami (pt.2) 2. Onsen Namine. A fairly average onsen. 2.1. Indoor bath with clear water, temperature 39-40, chlorine smell. Breathing is good. 2.2. Outdoor bath with the same water. 3. Onsen Saikai. 3.1. Indoor bath with clear water, temperature 40. Breathing is fine, but there was very heavy steam on the glass, effectively nullifying the view. 3.2. Outdoor bath with a modest bay view. Photos from the internet match reality. Water is clear, temperature 40. The place isn't without flaws, but it's interesting enough. I didn't have much time there, but everything looked appealing. And you can't argue with the infinity onsen - if they allow higaeri access to it, it's definitely worth a visit, even though there's strong competition from similar baths nearby.

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SM
Sergey M
1 year ago

232. Hotel New Akao, Atami (pt.1) A hotel complex with grounds, effectively consisting of two hotels connected by a walkway. Stayed overnight in the Ocean Wing building. Located on an elevated coastal area; as I understand, you can also get here by ropeway (I drove). Higaeri is listed but I didn't verify - from 13:00 to 18:00 for 2500, but I'm not sure which onsens (all of them or only specific ones). I booked a small room, but it had tatami and a window with a bay view. Didn't get meals. There are three onsen sets in different buildings, plus private baths (didn't try those). The hotels themselves have tons of stuff - retro arcades, surfing-themed things, and other entertainment. You can easily spend a good amount of time in the hotel keeping yourself entertained. 1. Infinity onsen Sparium Nishiki. Photos from the internet match reality. About 15 minutes before opening in the early morning, a crowd of people of various genders was already waiting at the entrance. 1.1. The main onsen of the complex - an outdoor infinity onsen with a bay view. The bath area isn't very large. The view is undeniably amazing. Water is clear, temperature around 40. If going in the morning on a sunny day - no joke, you might want sunglasses. 1.2. Indoor bath with clear water, temperature around 40. Breathing is fine, but there was a slight musty pipe smell from the drain. There's a view from the bath, but when I visited, steam on the glass prevented a perfect picture.

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Last updated August 5, 2026