Shizuoka · Atami Onsen
Izusan Onsen Hama Bathhouse (Hashiriyu)
伊豆山温泉 浜浴場（走り湯）
A neighbourhood-run communal bath at the foot of the stone stairway to Izusan Shrine, north of Atami Station and linked to Minamoto no Yoritomo and Hōjō Masako. The water comes from Hashiriyu, one of Japan's three ancient springs — a cave source where hot water once 'ran' down to the sea — a 71 °C calcium-sodium chloride spring, free-flowing with only water added to cool it. Inside it is pure Shōwa: an attendant's counter and two tubs, one hot, one lukewarm. ¥350; open afternoons only, roughly 14:00–20:00, closed Thursdays. Bring towel and soap. Pair with the free Hashiriyu cave just below and the 837-step climb to Izusan Shrine for a slice of Atami history. About 7 minutes by bus from Atami Station to Aizomebashi.
- Price (adult)
- ¥350
- Hours
- 14:00–approx. 19:00 (last entry 18:30; varies by season)
- Closed
- Thursdays & 4th Friday
- Access
- About 7 min by Tōkai bus (Izusan direction) from JR Atami Station to Aizomebashi, then 3 min on foot; or about 20 min on foot from Atami Station
- Water type
- Simple spring
- Tattoos
- Ask ahead
- Admission
- Adults ¥350 / children ¥100 (members discounted). Cash at the bandai counter
- Water
- Source “Dai-2 Hashiriyu”: calcium-sodium-chloride spring (hypertonic, weakly alkaline, ~71 °C). Free-flowing into two tubs, hot and lukewarm; faintly yellow-green
- Amenities
- A communal bath, so nothing is officially provided, but soap, shampoo, towels and a dryer can be borrowed free if you forget (as of a 2024 report). Lockable lockers
- Building
- Ground floor of the Hama Kaikan community hall run by the Izusan Hama cooperative, partway down the 837-step Izusan Shrine approach, below Route 135
- Phone
- 0557-80-0210
- Official site
- www.ataminews.gr.jp ↗
- Open in Google Maps
- Google Maps ↗
Essentials
Stay in this onsen town
Compare and book stays in Atami Onsen. Day bathing itself needs no booking.
Opens partner booking site (affiliate)
Why go
- Fed by Hashiriyu, one of Japan's 3 ancient springs
- Pure Shōwa bathhouse, ¥350
- With the cave and Izusan Shrine
Japan’s famous “running spring” for ¥350
Hashiriyu, the source of Izusan Onsen, is one of Japan’s three ancient springs, named for water that “runs” from a hillside cave toward the sea. Discovered in the Nara period, it flourished with the Izusan Shrine, where Minamoto no Yoritomo and Hojo Masako were joined. You can still watch 70 °C water steam out of the seaside cave (a historic site, free), and just above it the Hama bathhouse on the ground floor of the Hama Kaikan hall is Izusan’s only communal bath using this water. A hot tub and a lukewarm tub sit side by side, and the salty water keeps you warm long after.
Tips & cautions
- Hours differ between sources (14–19 / 14–20 / 14:30–21:30); 14:00 opening is consistent — call 0557-80-0210 to confirm. Closed Thursdays and the 4th Friday.
- A members’ bath opened to the public: wash first, keep quiet.
- The hot tub can reach ~45 °C; start with the lukewarm one.
- Reached by steep steps down from the highway — awkward with luggage. Bus from Atami Station to “Izusan-jinja-mae”, then down the steps.
- Combine with the Hashiriyu cave (3 min) and Izusan Shrine (15–20 min up the steps).
Getting there
Bus ~7 min from JR Atami Station toward Izusan to “Izusan-jinja-mae” or “Hashiriyu”, then 3–5 min by steps (Izusan 579-37). ~10 min by taxi. No parking.
Before you go
- No official tattoo policy is published — ask at reception.
- As a communal bath there is no soap or shampoo — bring your own or buy at the shop.
- Payment is usually by ticket machine in cash — bring coins.
- Last entry is 30–60 minutes before closing.
Features
Mood & scenery
Price
Who with
Amenities
✔ Verified operating: 2026-09 スルガ銀行温泉探訪2024-05・ゆる〜と2025-08
Prices and hours change. Check official sources before visiting.
More in this area
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Yamada-yu
A family-run bathhouse from 1955 tucked into a residential block: a three-person tub, a Mt. Fuji tile mural and free-flowing water for ¥300. Bring soap and towel — this is a neighbourhood bath, not a tourist spot.
Ooedo Onsen Monogatari Premium Atami (day use)
A resort hotel eight minutes downhill from Atami Station. Day bathing (1–9 pm) from ¥900 on weekdays and ¥1,300 on weekends — good value for Atami — with sea and Hatsushima views from the open-air bath. No loungewear; towels cost extra. Weekdays ¥1,600, weekends/holidays ¥2,000, peak days ¥2,200.