Hosenkaku is a ryokan of just five rooms in the hills of Atami Onsen, Shizuoka, about 5 minutes on foot from Kinomiya Shrine. The inn says one family runs everything, “from the front desk to the kitchen,” and that the area is so wooded and quiet that guests are surprised to find it in Atami. Before you book, three things matter: rooms have no private toilet or bath; the two hot-spring baths are lockable and private, open 24 hours; and from the parking lot there are about 50 steps up to the entrance.
What kind of inn is Hosenkaku?
The inn describes itself as a small inn for up to 25 guests on a hill near the woods of Kinomiya Shrine, aiming for attentive service that large ryokan cannot give. It says it is well known among university students as an affordable inn for spring and summer training camps, and that companies have used it for residential training for many years. Groups of 10 to 25 can book the whole inn. It also offers free Wi-Fi throughout and a meeting room for up to 28 people, open 24 hours, with free LAN, whiteboard and projector.
What are the rooms like?
All five rooms are Japanese tatami rooms: Matsushima (8 mats, up to 4), Suigo (10 mats, up to 5), Echizen (16 mats, up to 8), Fuji (12 mats, up to 7) and Sado (8 mats, up to 4). The bath, toilets with bidet seats and washbasins are shared. Each plan includes a yukata, towel and toothbrush; a bath towel is 200 yen. Rooms have a safe and fridge, and you may bring your own drinks.
Hosenkaku at a glance
| Item | Official information |
|---|---|
| Address | 16-6 Nishiyamacho, Atami, Shizuoka 413-0034 |
| Rooms | 5 Japanese rooms, 8 to 16 mats, for 4 to 8 guests |
| Bathroom | Shared bath, toilet and washbasin |
| Hot spring | 2 lockable private baths, 24 hours (except cleaning) |
| Check-in / out | 12:00 / 11:00 |
| Payment | Paid at the inn (booking page) |
| Parking | Free, 5 cars; about 50 steps to the entrance |
| Phone | +81-557-81-7624 (9:00–21:00 Japan time) |
From the official site, terms of stay and booking page, read October 16, 2026.
The hot-spring baths at Hosenkaku
How do the private baths work?
There are two bathrooms. Lock the door and use one privately; both can be used 24 hours, except during cleaning. Rinse-in shampoo, body soap and a hair dryer are provided. The official pages do not mention a large shared bath or an open-air bath.
What is the water like?
The spring is a sodium-calcium chloride hot spring at 80.0°C at the source, pH 8.2. Because it is so hot, the inn adds 10 to 30 percent water while filling the tub; once full, the spring flows in unmixed. The booking page describes the water as on the hot side.
Can I bathe with a tattoo?
The official pages do not mention tattoos. The baths are private, but ask the inn before you book; our tattoo and onsen guide explains what to ask.
Getting to Hosenkaku in Atami
From Atami Station, take the JR Ito Line one stop to Kinomiya Station, then walk about 15 minutes uphill. A taxi from Kinomiya Station is one meter fare (about 3 minutes), and from Atami Station about 1,000 yen. Call ahead and the inn will pick you up; the booking page says it meets guests at Kinomiya Station. For how pickups work in Japan, see our free hotel shuttle guide.
Parking is free for 5 cars. Set your car navigation to “10-37 Nishiyamacho, Atami” to reach the parking lot. Cars cannot pull up to the door, and there are about 50 steps from the parking lot to the entrance. Large buses should contact the inn first, as there is no bus parking. Kinomiya Shrine, known for its great camphor tree (over 2,000 years old, the inn says), is about 5 minutes away on foot.
Meals at Hosenkaku
What are dinner and breakfast like?
The official site promotes fresh seafood from the Izu area but does not describe where or how meals are served. The current plan on the booking page, “local sake and seafood feast,” offers a seafood dinner with one bottle of Izu sake per person, served in a private room. The inn says it uses only rice grown in Japan.
Can the inn handle allergies?
Tell the inn 3 days ahead by email or phone. Its terms say a single-item allergy such as shrimp can be handled, but allergens such as wheat and soy may be in seasonings and cannot always be avoided, and traces on shared cookware cannot be fully removed. Vegetarian and halal meals are not mentioned.
Prices, children and cancellation at Hosenkaku
How much does a stay cost?
The two official sources show prices differently, so we give each as written, as of October 16, 2026:
| Source | Plan | Per person per night |
|---|---|---|
| Official site | Standard plan, two meals | From 9,000 yen (excl. tax) |
| Official site | Sashimi plan, two meals (2 guests or more) | 10,000 yen (excl. tax) |
| Official site | Breakfast only (2 guests or more) | 5,500 yen (excl. tax) |
| Booking page | Local sake and seafood feast (2 adults in a room) | 13,200 yen (incl. tax) |
Bathing tax is extra in all cases. Read October 16, 2026.
The official site says weekends and holiday eves cost the same, that bookings open 6 months ahead, and that same-day bookings are not accepted. The terms say there is no service charge.
What local taxes are added?
Atami City charges a bathing tax of 150 yen per person per day (one day for a one-night stay); under-12s, including 12-year-olds in elementary school, are exempt. Since April 1, 2025, it also charges an accommodation tax of 200 yen per person per night; elementary school age and younger are exempt. See Atami City on the bathing tax and on the accommodation tax, and our onsen bathing tax guide.
What do children cost, and what if I cancel?
Both the terms and the booking page charge elementary school children 50 percent of the adult rate. For younger children and for cancellation fees, the official pages give different figures, so confirm with the inn when you book. The terms say no cancellation fee applies when the inn cancels because of a heavy rain or landslide emergency warning. Our hotel cancellation guide covers how fees work in Japan.
How do I pay?
The booking page says payment is at the inn. Whether cards are accepted is not stated, so bring cash or ask first. Staying past 11:00 costs 500 yen per person per hour, up to 6 hours, under the terms.
What foreign guests should know before staying at Hosenkaku
- The official site and booking page are in Japanese only. Questions go by email (hosen@outlook.jp) or phone.
- Pack light or be ready to carry bags up about 50 steps from the parking lot.
- Toilets and washbasins are shared, and a bath towel costs 200 yen, so bring your own if you prefer.
- Book at least a day ahead; same-day bookings are not accepted.
- The inn’s terms ask foreign guests to register their nationality, passport number, and place and date of entry to Japan.
Frequently asked questions
Do the rooms at Hosenkaku have their own bathroom?
Can I bathe privately at Hosenkaku?
What time is check-in at Hosenkaku?
Can I bathe at Hosenkaku with a tattoo?
How do I get to Hosenkaku?
Bottom line (2026): Hosenkaku is a quiet, family-run inn of five tatami rooms above Atami, with two lockable private hot-spring baths open around the clock and shared toilets. Expect about 50 steps from the parking lot, call ahead for a pickup from Kinomiya Station, and book at least a day ahead on the official booking page.
Sources
Every fact on this page is from Hosenkaku’s official pages: home (Japanese), prices, facilities, access, nearby area, the safety measures and terms of stay (PDF) and the official booking page (Japanese); local taxes are from Atami City (bathing tax, accommodation tax). All were read on October 16, 2026. Prices and rules change; check the official site before you book.
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