Ibaraki · Tsukubasan Onsen
Tsukubasan Onsen Tsukuba no Yu
筑波山温泉 つくばの湯
About 90 minutes from Akihabara via the Tsukuba Express, a day spa on the slopes of Mt. Tsukuba. The open-air bath opens onto a cliff with the whole Kantō plain below—the classic post-hike or post-cable-car soak. Alkaline simple spring water around pH 9 leaves skin smooth. ¥1,100 weekdays, ¥1,300 weekends; reservable private baths too. Check the calendar for closure days.
- Price (adult)
- ¥1,100
- Hours
- Weekdays 12:00–19:00 / Sat, Sun & hol 10:00–19:00
- Closed
- Irregular (check ahead)
- Access
- 36 min by Mt. Tsukuba shuttle bus from Tsukuba Station (TX) to Tsukubasan-Jinja-Iriguchi, then 15 min walk; 40 min by car from Tsuchiura-Kita IC
- Water type
- Alkaline simple
- Tattoos
- Ask ahead
- Phone
- 029-866-2983
- Official site
- yuru-to.net/detail.php?oid=58 ↗
- Open in Google Maps
- Google Maps ↗
Essentials
Stay in this onsen town
Compare and book stays in Tsukubasan Onsen. Day bathing itself needs no booking.
Opens partner booking site (affiliate)
Why go
- Cliff-top bath over the Kantō plain
- After the Mt. Tsukuba hike
- ~90 min from Akihabara
Before you go
- No official tattoo policy is published — ask at reception.
- Last entry is 30–60 minutes before closing.
Features
Sauna & wellness
Rules & private
Mood & scenery
Who with
Price
Convenience
Amenities
✔ Verified operating: 2026-09 ゆる〜と・BIGLOBE旅行（平日1,100円/土日祝1,300円）※休館日は公式カレンダー要確認
Prices and hours change. Check official sources before visiting.
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