Ibaraki · Tsukubasan Onsen
Tsukubasan Hotel Aokiya
筑波山ホテル青木屋
An inn on the flank of Mount Tsukuba known for its views. It has an open-roofed panoramic bath, Unjo-no-Yu, at 300m above sea level and a panoramic main bath, Ginga-no-Yu, overlooking the Kanto plain; the water is a simple alkaline spring. Day bathing is 12:00-15:00 at 1,200 yen for adults, tax included, and rooms can be booked for a three-hour rest at 5,500 yen.
- Price (adult)
- ¥1,200
- Hours
- 12:00-15:00
- Closed
- Open daily (overnight guests take priority in busy periods)
- Access
- Halfway up Mount Tsukuba in Tsukuba, Ibaraki; about 35 minutes by car from the Tsuchiura-kita interchange on the Joban Expressway, or by the Mount Tsukuba shuttle bus from Tsukuba Station on the Tsukuba Express.
- Water type
- Simple spring
- Tattoos
- Ask ahead
- Admission
- Day bathing is 1,200 yen per person, tax included. A room can also be booked for a rest, at 5,500 yen for three hours.
- Hours and closure
- Day bathing is 12:00-15:00. Overnight guests may use the open-air bath Unjo-no-Yu and the panoramic main bath Ginga-no-Yu from 15:00 to 24:00 and 5:30 to 8:30, with the sauna (men only) from 17:00 to 20:30. There is no fixed closing day, though overnight guests take priority in busy periods.
- The spring
- It is a simple alkaline spring, said to help with the skin, neuralgia and fatigue. The water feels smooth, and bathers often remark on how soft their skin is afterwards.
- The baths
- The open-roofed panoramic bath Unjo-no-Yu sits at 300m above sea level, so the scenery of Mount Tsukuba can be taken in from the water. From Ginga-no-Yu, the panoramic main bath with washing stations, the Kanto plain stretches away, and at night the lights of the university town spread below.
- Getting there
- The inn is halfway up Mount Tsukuba in Tsukuba, Ibaraki, about 35 minutes by car from the Tsuchiura-kita interchange on the Joban Expressway. By public transport, take the Mount Tsukuba shuttle bus from Tsukuba Station on the Tsukuba Express.
- Phone
- 029-866-0311
- Official site
- aokiya-hotel.com ↗
- Open in Google Maps
- Google Maps ↗
Essentials
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Why go
- Unjo-no-Yu, an open-roofed panoramic bath 300m above sea level
- Ginga-no-Yu, a panoramic main bath over the Kanto plain (men's sauna)
- Day bathing 1,200 yen tax included, with three-hour room rests at 5,500 yen
Unjo-no-Yu, a panoramic bath 300m above sea level
Tsukubasan Hotel Aokiya stands halfway up Mount Tsukuba in Tsukuba, Ibaraki, and is known for its views. Its pride is Unjo-no-Yu, an open-roofed panoramic open-air bath; from the tub at 300m above sea level the scenery of Mount Tsukuba unfolds, and on clear days Fuji can be seen. At night the lights of the university town spread below, giving a quite different view from daylight hours.
Ginga-no-Yu and the view over the Kanto plain
Ginga-no-Yu, the panoramic main bath with washing stations, gives a wide view over the Kanto plain. The water is a simple alkaline spring said to help the skin, neuralgia and fatigue, and is noted for its smooth feel. The open-air and main baths are open 15:00-24:00 and 5:30-8:30, with the sauna running for men only from 17:00 to 20:30.
Visiting for the day
Day bathing is 12:00-15:00 at 1,200 yen per person, tax included. To take things more slowly, a room can be booked for a rest at 5,500 yen for three hours. There is no fixed closing day, but overnight guests take priority in busy periods, so checking before setting out is reassuring. The hours also suit a stop after visiting Tsukuba-san-jinja shrine or walking on the mountain.
Before you go
- No official tattoo policy is published — ask at reception.
- Ryokan day-use hours are limited and may be suspended in peak season — phone the same morning.
- Last entry is 30–60 minutes before closing.
Features
Sauna & wellness
Mood & scenery
Price
Convenience
Amenities
✔ Verified operating: 2026-10 Operating status and rates cross-checked against the official site and onsen guides (full source notes in Japanese on the JA page)
Prices and hours change. Check official sources before visiting.
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