Overview

Kamenoi Hotel Atami Annex gives you a hilltop stay with views over Sagami Bay and Atami city. The hotel reopened on March 20, 2026, with refreshed rooms, a renewed restaurant, and a brighter coastal feel throughout the stay.

Every room faces the ocean, so the view becomes one of the main pleasures here. You can wake to the light over Sagami Bay, enjoy kaiseki dining with local seafood and seasonal ingredients, and soak in Atami Onsen while looking toward the city and sea. This hotel works well when you want a relaxed Atami stay with strong views, hot spring bathing, and easy access to the main hotel’s kids’ park and Atami sightseeing.

Accommodation

Kamenoi Hotel Atami Annex offers ocean-view rooms across several styles, including a premium suite with a hot spring open-air bath, deluxe quad rooms, Japanese-Western rooms, triple rooms, and Japanese-style rooms. All rooms are non-smoking, with a smoking corner on the first floor.

The Premium Suite with Hot Spring Open-Air Bath is the strongest room choice if you want private hot spring bathing. The room has a spacious layout, a separate bath and toilet, and an open-air bath where you can soak while looking toward Sagami Bay and Atami city.

The Deluxe Quad room is designed for families and groups, with multiple beds, sea views, and a bath with separate bathroom and toilet areas. The Japanese-Western Deluxe Room with Terrace combines beds with Japanese-style space and gives you a wide terrace overlooking Sagami Bay. Its in-room bath is not a hot spring.

The Standard Triple rooms and Standard Triple with Terrace offer simple Western-style layouts for friends or family, with a bright ocean-facing atmosphere. The Superior Japanese Room and Standard Japanese-style rooms give you tatami flooring and a more relaxed Japanese feel. Some Japanese-style rooms include a terrace, giving you a more open way to enjoy the sea breeze and the view.

Rooms include Wi-Fi, TV, safe, electric kettle, hair dryer, washlet toilet, towels, toothbrushes, yukata belts, and standard bath items in rooms with baths. Yukata, cotton swabs, hair ties, brushes, razors, and shower caps are available near the front desk.

Dining

Dining takes place in the renewed restaurant, where you can look out toward Sagami Bay during the day and Atami city lights in the evening. Dinner is served as kaiseki, with seafood, seasonal ingredients, and local Shizuoka flavors shaping the meal.

The higher-grade kaiseki courses include dishes such as five kinds of sashimi, abalone, beef tataki, Izu splendid alfonsino, spiny lobster, abalone clay pot rice, red sea bream rice, and seasonal desserts. The standard seasonal kaiseki gives you an easier way to enjoy local flavor, with dishes such as sashimi, simmered fish, Shizuoka local chicken hot pot, wasabi rice bowl, and seasonal sweets. Menus change with the season and ingredient supply.

Children’s meals are available, including a children’s kaiseki course for older children and a lighter meal for younger children. These may include dishes such as hamburger steak, fried chicken, fried shrimp, udon, gratin, rice, miso soup, fruit, and dessert.

Breakfast is a Japanese and Western buffet with around 60 dishes, including live-kitchen items such as herb-fried horse mackerel and sakura shrimp kakiage tempura. Late in the evening, you can enjoy Kamenoi’s complimentary Dandanmen service at the restaurant, with rotating red, black, and white sesame-based styles.

Onsen and Wellness

The large public bath uses natural Atami Onsen water and gives you views of Sagami Bay and Atami city. You can enjoy a semi-open-air bath, large public bath, reclining bath, and tub bath. The men’s and women’s bath areas change daily, so each bath has a different atmosphere depending on the day of your stay.

The spring quality is calcium-sodium sulfate and chloride spring water, classified as hypotonic, slightly alkaline, and high-temperature. The water is associated with support for neuralgia, muscle pain, joint pain, stiff shoulders, motor paralysis, stiff joints, bruises, sprains, chronic digestive concerns, hemorrhoids, cold sensitivity, recovery after illness, fatigue recovery, cuts, burns, chronic skin conditions, and general health promotion.

Bathing hours are from 5:30 to 10:00 and from 14:00 to 24:00. On Wednesdays, the baths open later in the afternoon because of pipe disinfection and maintenance. You can also use the large public bath at Kamenoi Hotel Atami Main Building during its operating hours, though you need to make your own way between the two buildings.

The private baths are no longer available after the 2026 renovation. Most in-room baths are not hot springs, except for the Premium Suite with Hot Spring Open-Air Bath.

Guests with tattoos

Kamenoi Hotel Atami Annex has shared public hot spring baths. Tattoos are not permitted in the shared bathing areas unless they are fully covered with a tattoo-cover sticker. If you want private hot spring bathing with tattoos, choose the Premium Suite with Hot Spring Open-Air Bath.

Facilities

Kamenoi Hotel Atami Annex has a renewed restaurant, large public hot spring bath, shop, karaoke room, in-room massage service, coin laundry, ice machine, vending machines, smoking corner, Wi-Fi throughout the building, free parking, luggage storage, and wheelchair rental.

The shop carries Atami and Shizuoka souvenirs, including wasabi-related items, local sweets, and Shizuoka tea products. The karaoke room is available by reservation, while the massage service offers body, foot, and shoulder care in your room on selected days. The coin laundry and ice machine add convenience for longer stays, family travel, or summer visits.

The main Kamenoi Hotel Atami building has ATAMI KIDS PARK, and you can use it while staying at the annex. You need to travel between the annex and main building on your own. Baby food and children’s items are also available through the front desk, making the hotel easier to use for family stays.

Activities

Kamenoi Hotel Atami Annex places you close to Atami sightseeing while keeping you above the city with strong sea views. You can visit Kinomiya Shrine, Kiunkaku, MOA Museum of Art, Atami Plum Garden, Atami Castle, and the coastline around the city.

Atami is also known for its fireworks, held on selected dates throughout the year. The city’s hillside and bay setting make the fireworks especially impressive, and the hotel works well when you want a hot spring stay around an event night. You can also continue toward Hakone or the Izu Peninsula for a longer trip.

Additional Features

Kamenoi Hotel Atami Annex is a good choice when you want ocean-view rooms, Atami Onsen bathing, refreshed 2026 room designs, kaiseki dining, a breakfast buffet, late-night Dandanmen, karaoke, in-room massage options, and access to the main building’s kids’ park.

Check-in starts at 15:00, and check-out is at 10:00. You also have Wi-Fi throughout the building, all non-smoking rooms, a first-floor smoking corner, free parking, luggage storage on the day of check-in and check-out, shuttle service by reservation, cashless payment options, and easy access to Atami’s shrines, museums, fireworks, and coastal sightseeing.