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Onyado Nono Asakusa Bettei

天然温泉 凌天の湯 御宿 野乃浅草別邸てんねんおんせん りょうてんのゆ おんじゅく の乃あさくさべってい

Lodging
Kanto·Tokyo

Day Use

Yes

Available for guests staying at Dormy Inn EXPRESS Asakusa

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

Cold BathYes

Cold water plunge bath, typically used after sauna

Policies & Services

WashingYes

Shower, wash stations, soap and shampoo provided

TowelsYes

Towels available to rent or borrow

浅草観音温泉

Asakusa Kannon Onsen

Operated by · 株式会社共立メンテナンス

Chloride
+ Bicarbonate
Color
pale brown and clear
Taste
tasteless
Odor
odorless

Sodium-Magnesium Chloride-Bicarbonate spring

pH 8.2Weakly alkalineHigh silica
Composition fingerprint1.1 g/kg dissolved · Hypotonic
Na⁺62
Mg²⁺20
Cl⁻60
HCO₃⁻35
CationsAnions
Sodium Na⁺
salt's cation — pairs with chloride to make the water salty.
Chloride Cl⁻
table-salt anion — coats the skin and holds heat in.
Known good for
  • Warmingcold sensitivity
  • Smooth skindry, rough skin
  • Cutsminor wounds

A sodium-magnesium chloride cold-mineral spring, with bicarbonate softness layered in. Weakly alkaline and soft on the skin, it carries a faint brown tint with rising bubbles at the source. With 64 mg/kg of metasilicic acid it leaves a thin silica film that sits in the Japanese beauty-water family. As a cold-mineral source under 25 °C, it is heated for bathing.

Sampled at wellhead·Analyzed May 31, 2019·公益財団法人 中央温泉研究所·Cert no. 14健地衛第1号

Explore the water

Highlights

Utaseyu
Jet Bath

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4.0

1 review

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Sergey M
1 year ago· edited

439. Onyado Nono Asakusa Bettei, Tokyo ★★ Stayed overnight, did not use any services except the onsen. It is in Asakusa, very close to Sensoji. Inside, the style is like a cosplay version of a ryokan. At first it feels a bit strange, but then it feels normal and comfortable. The onsen is similar in style, an upgraded onsen from Dormy Inn business hotels, but with black water, which changes the rating. The bath photos from the internet match what is there. 1. Indoor area. Breathing is fine. 1.1. Main bath, black water, temperature 41-42. 1.2. Two reclining jet baths, clear water. 1.3. Utaseyu. 1.4. Sauna. 1.5. Cold bath. 2. Outdoor area. It is entirely on an enclosed balcony. 2.1. Small bath with black water, temperature 42. 2.2. Single-person bath with clear water, temperature 39-40. 2.3. Single-person bath with clear water, temperature 42-43. Because of the price and the style, this place may be controversial, but it is still a real hotel with an onsen in Tokyo, in a good location and with rare black water. An interesting option for staying. 19.01.2025

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Last updated July 12, 2026