Chiba · Kameyama Onsen (Kimitsu)
Kameyama Onsen Hotel
亀山温泉ホテル
About 70 minutes from central Tokyo via the Aqua-Line, a hot-spring inn founded in 1950 on the shore of Lake Kameyama in the Boso hills. Its chocolate-brown 'kuroyu' bicarbonate water — billed as Boso's finest beauty bath — flows freely into a large bath with lake and forest views. Day use 11:30–18:00, ¥1,000 on weekdays; no day bathing Thursdays and Fridays. In autumn pair it with a foliage cruise on the lake.
- Price (adult)
- ¥1,000
- Hours
- 11:30–18:00(leave by 18:30)
- Closed
- Thu & Fri (day bathing)
- Access
- 10 min walk from Kazusa-Kameyama Station (JR Kururi Line); 30 min by car from Kisarazu-Higashi IC
- Water type
- Bicarbonate spring
- Tattoos
- Ask ahead
- Phone
- 0439-39-2121
- Official site
- www.kameyamaonsen.jp ↗
- Open in Google Maps
- Google Maps ↗
Essentials
Stay in this onsen town
Compare and book stays in Kameyama Onsen (Kimitsu). Day bathing itself needs no booking.
Opens partner booking site (affiliate)
Why go
- Free-flowing chocolate-brown kuroyu
- Lake Kameyama views
- 70 min from central Tokyo
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
Mood & scenery
Convenience
Price
Who with
Amenities
✔ Verified operating: 2026-09 公式 2026-06 料金改定（平日1,000円/土日祝1,200円）
Prices and hours change. Check official sources before visiting.
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Yoro Valley Onsen Sagawa
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