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Beppu Onsen Hoyoland

別府温泉保養ランド【泥湯】べっぷおんせんほようランド【どろゆ】

Other
Beppu OnsenMyoban Onsen
Kyushu & Okinawa·Oita
0977-66-2221hoyoland.net

Day Use

Yes
09:00–20:00

9:00~20:00 (last admission from 19:00)

¥1,500

Bathing & Water

Natural onsen water

Uses natural hot spring water

Outdoor BathYes

Open-air outdoor bath

Capabilities

Mixed BathingYes

Shared bathing area for all genders

Policies & Services

TattooYes

Allows entry with visible tattoos

ParkingYes

On-site or nearby parking available

200 spaces

別府温泉保養ランド

Beppu Onsen Hoyoland

Operated by · 有限会社 カットコーポレーション瑞宝

酸
Acidic
+ Sulfate · 含鉄(II)泉 · アルミニウム泉
Color
medium milky-white, slightly turbid
Taste
moderate metallic iron taste, weakly acidic
Odor
faint hydrogen sulfide note

Calcium-Hydrogen Sulfate spring

pH 2.9AcidicHot source · 50°CUltra-acidicHigh silica
Composition fingerprint0.4 g/kg dissolved · Hypotonic
Ca²⁺30
H⁺27
Na⁺13
SO₄²⁻90
◀ CationsAnions ▶
Calcium Ca²⁺
settling and calming; can leave a white mineral bloom.
Sulfate SO₄²⁻
"gypsum / Glauber's salt" — vessels and wound healing.
Known good for
  • Skin conditionsatopic skin, eczema
  • Circulationtired legs
  • Aches & jointsstiff shoulders
  • Sensitive-skin cautionbroken or dry skin

The source feeding Hoyoland's famous mud baths in Beppu's Kannawa quarter — an acidic spring at pH 2.9, with sulfate making up roughly 90% of the anion balance and notable iron(II) and aluminum on the cation side. The water reads milky-white with a faint cloud, carries a clear iron tang on the tongue, and breathes a soft hydrogen sulfide note — unmistakably Beppu in character. With 91.3 mg/kg of metasilicic acid layered in, it leaves a perceptibly smoother finish on the skin.

Sampled at bath inlet·Analyzed Dec 14, 2016·大分県薬剤師会検査センター·Cert no. 大薬検 第 7R-2812002号

Explore the water

Programs

About

This is a mineral mud hot spring that wells up from underground. The mineral mud, produced only under the three major conditions of moderate steam, corrosive clay layers, and mineral water, is a rare and precious hot spring directly connected to the hells. This mud, which has risen after a long time from the center of the earth, is so fine that it becomes a mist-like powder when dried. It has a heavier specific gravity and greater buoyancy than ordinary hot springs, so you can enjoy a mysterious floating sensation when soaking.

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Rita

1 year ago

153. Beppu Onsen Hoyoland Large mud onsen in Beppu. The bath size and mud water make it unique. Admission 1500. They give stamps. The smell on the body after visiting lingers quite noticeably. Facilities inside: 1. Indoor bath with milky water. Temperature hot, comfortable to breathe. 2. Indoor mud bath. Water temperature slightly below hot, air is good. Standing shower available for rinsing off the mud. 3. Main outdoor mud bath. Mixed bathing, but the men's and women's zones are separated by wooden railings. Water temperature slightly below hot. 4. Additional outdoor mud bath. Also mixed bathing with the same layout as the main one. Water temperature slightly below hot. Smaller than the main one. Key feature — a very thick and uneven mud layer on the bottom, slightly slippery. 5. Sauna. 6. Small cold bath near the sauna. 7. Empty outdoor bath without water (I think this used to be a non-mud outdoor bath). Due to its uniqueness, this is essentially a must-visit.

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Sergey M
2 years ago

153. Beppu Onsen Hoyoland A large mud onsen in Beppu. The size of the baths and the muddy water make it unique. Entry 1500 yen. Stamp available. The smell on the body after visiting lingers noticeably. Inside there are the following facilities: 1. Indoor bath with milky water. Temperature hot, breathing comfortable. 2. Indoor mud bath. Water temperature hot-, breathing good. There's a standing shower for rinsing off mud. 3. Outdoor main mud bath. Mixed-gender bath, but the men's and women's zones are separated by wooden railings. Water temperature hot-. 4. Outdoor secondary mud bath. Also mixed-gender by the same principle as the main one. Water temperature hot-. Smaller than the main one. The main difference is a very thick and uneven layer of mud on the bottom, a bit slippery. 5. Sauna. 6. Small cold bath near the sauna. 7. Outdoor empty bath with no water (I think this used to be a non-mud outdoor bath). Due to the uniqueness of this onsen, it's essentially a must-visit.

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Last updated July 15, 2026