New Welcity Yugawara - Izumi no Yuニューウェルシティ湯河原 いずみの湯

New Welcity Yugawara sits at the upper end of the valley, technically in Atami City despite the Yugawara Station address used for GPS navigation. It is a - a private welfare resort operated under Meguro Ward - which means Tokyo municipal workers and residents can access it at preferential rates while the general public pays the standard admission. In practice, this produces a specific clientele: '、' (a calm crowd, no rowdy students) - the kind of quiet that makes a mid-week soak feel genuinely restorative.

The day-use facility is called Izumi no Yu, and it holds two distinct baths within the outdoor area. The largeopen-air bath is Yugawara's biggest by surface area - 40-person capacity, roughly 41°C, open-air with valley views - and is circulation-filtered with chlorination. Thestone bath (stone bath) next to it is the better water: source-fed hot-spring water from the same spring, around 43°C, with a posted notice that the temperature varies by season and ambient air temperature. That last detail is how you identify genuine kakenagashi - no thermostat means no recirculation. Older reviews (2013-2014) noted chlorine in the outdoor bath; more recent visitors report clean water, which may reflect treatment improvements or simply that they spent their time in the stone bath.

Alongside the baths: a sauna running at 82°C with TV monitors inside and a cold water pool adjacent, plus a conventional indoor bath for days when the outdoor area is too exposed. The sauna closes at 22:00, so later arrivals miss it - arrival by 20:00 is the practical cutoff for the full facility. A second-floor free rest area and optional private-room resting (yukata required, ¥300) mean that a half-day here can comfortably stretch to a full one.

Admission is ¥1,100 (tax included) per adult plus the Yugawara of ¥150, with child pricing at ¥550 and toddlers ¥440. Meguro Ward members and certain ward workers can access a discounted rate - one reviewer paid ¥770. Parking is a flat ¥200 regardless of duration. The free shuttle from Yugawara Station runs from the rotary stop near the Doi Sanshiro statue (left side) - check the current schedule with the facility before relying on it. Towel and yukata rentals are available but not included; bring your own towel to keep the total at ¥1,250.

One practical caveat: peak-period surcharges are steep. A GW 2024 visitor paid ¥1,800 base before adding deep-night fees, and rated the value '.' The standard-season price is genuinely good for what's on offer; the holiday price is not. Plan accordingly.

In the Yugawara onsen roster, New Welcity fills the scale slot: it is the facility you recommend when someone wants to stretch out, soak long, and not feel pressed for space. For the purest mineral experience, the stone bath inside Izumi no Yu is the move. For the broadest variety, Miyakami no Yu in the lower valley has carbonated springs, mud sauna, and herb tent. For the deepest historical atmosphere, Mamanenoyu is a ¥300 toji house less than a kilometre away. New Welcity serves its purpose best when the priority is space, convenience, and a day that doesn't need to end.

Address: 107 (GPS navigation: Miyakami, Yugawara, Ashigarashimo District, Kanagawa 359)

Phone: 0465-63-3721

Hours: Day-use (Izumi no Yu): 11:00-24:00 (last entry 23:00; sauna closes 22:00) + 5:00-9:00 morning window

Towels: Towel rental available (¥330). Shampoo, conditioner, body soap, and hair dryer provided. Bring your own towel to avoid the rental charge.

Baths on-site: stone bath（source-fed hot-spring water）, open-air bath, indoor bath, sauna, cold bath

Source:

Spring type: -

Source temperature: 63°C

pH: 8.4

Handling: mixed

「湯河原最大級の露天風呂が自慢の宿」

A facility that takes pride in Yugawara's largest outdoor bath.

「源泉かけ流しの石風呂だけは、案内看板に気温でお湯の温度が毎回違う」

The stone source-flow bath alone has a sign that says the temperature varies each time depending on the air temperature.

「湯あたりがよく、湯上り感もさらさらでいいと思います」

The water feels gentle on the body and leaves a smooth, refreshed sensation after bathing.

「落ち着いた客層、おしゃべりがうるさい学生もおらず」

A calm crowd - no rowdy students, no loud chatter.

「広々足も伸ばせて最高です」

Spacious enough to stretch your legs - the best.

「館内全て綺麗でフロントスタッフさんも親切で丁寧」

The whole facility is clean and the front desk staff are kind and attentive.

「コスパが悪すぎる」

The value for money is just too poor.

These are points where the platforms and official pages we consulted gave us conflicting information.

• Per-bath water handling (outdoor vs stone bath vs indoor): Three distinct water-treatment tiers within Izumi no Yu: stone bath (stone bath) - source-fed hot-spring water, ~43°C, temperature varies with ambient air (no artificial thermostat - this is the clearest signal of genuine kakenagashi behavior); open-air bath (large outdoor) - recirculated + chlorinated, ~41°C (chlorine noted in 2013-2014 reviews; 2022-2023 reviewers report no odor - possible treatment upgrade or just a reviewer preference for the stone bath); indoor bath - heatedrecirculated. Rubric §7.17 applies: always specify per-bath, never inherit the stone bath's kakenagashi status to the whole complex.
• Address and GPS navigation: Official address is 107 - the facility is on the Shizuoka side of the Kanagawa/Shizuoka border. Navigation systems often fail to route correctly from this address for drivers approaching from the Kanagawa side. The official site recommends using Miyakami, Yugawara, Ashigarashimo District, Kanagawa 359 for car navigation. Map URL in this guide uses coordinates (35.142244, 139.081020) sourced from the Meguro Ward facility page.
• Map URL - corrected from prior copy-paste bug: The guide entry previously used maps.app.goo.gl/FHrPeYpeksGSfzmF6 for this facility. That link resolves to Fukuura Minato Shokudo (Fukuura Minato Shokudō), a completely different facility on the Yugawara coast. Corrected to coordinates-based URL (35.142244, 139.081020). The Fukuura Shokudō entry retains FHrPeYpeksGSfzmF6 because that link is correct for the restaurant.
• Peak surcharges and value variance: Standard season admission is ¥1,100 (tax incl.) per adult + ¥150. During GW, Obon, year-end/New Year, and other peak periods, base admission can rise to ¥1,800 or higher with additional late-night or deep-night fees on top. One GW 2024 reviewer found the value poor at that price. Surugabank's older pricing (¥1,000/¥500/¥300) is stale and should not be published.
• '' disambiguation: Three distinct uses of '' in the Yugawara context: (1) New Welcity's in-house bath named '' - for lodging guests only, circulated; (2) the rotating women's bath name inside Kogome no Yu; (3) the chain that transports Yugawara spring water to out-of-town facilities and brands it '.' Note: there is NO standalone day-use facility located in Yugawara town. The chain's spring source is in Yugawara but the facilities are elsewhere.
• Meguro Ward welfare facility - membership pricing: New Welcity is a contracted under Meguro Ward. Meguro Ward residents, commuters, and their accompanying family members can access preferential pricing - one Nifty reviewer cited ¥770 with a member discount. General visitors pay standard admission. The guide targets general visitors; member pricing is noted as a data point but not the lead.

• Official site (Japanese)
• Nifty Onsen listing
• Suruga Bank onsen report
• Source (Japanese)
• Official site (Japanese)
• Source (Japanese)