This article contains affiliate links.
The Hiramatsu Hotels & Resorts Kashikojima stands on a wooded rise above the inlets of Ago Bay. Its scale is unusually focused: four rooms in the main building, four in the annex, and a French restaurant that gives the stay its rhythm.
Opened on July 15, 2016, Kashikojima was Hiramatsu’s first directly operated hotel and the starting point for its hotel business. It marked its tenth anniversary in July 2026. The idea behind it is a “restaurant with rooms”: arrive in time to see the bay, settle in for a course built around Ise-Shima produce, take to the onsen after dinner, and return to the water-facing dining room for breakfast.
Check The Hiramatsu Kashikojima rates and availability on Expedia →
An Eight-Room Restaurant Above Ago Bay
Every guest room looks toward Ago Bay. Pale stone, warm timber and broad openings keep the water and tree line present through the building rather than treating the view as a single-room feature.
The hotel has one French restaurant, arranged across seven dining spaces of different sizes and outlooks. Dinner and breakfast included in accommodation plans are served in the restaurant. The 2025 Michelin Guide hotel selection awarded the property One Michelin Key for a second consecutive year.
Main Building or Annex: The Onsen Difference
The four Main Building Twin rooms occupy the second floor. They measure 50–55 square metres and accommodate one to three guests, with an extra bed used for the third person. Each has a sofa, a desk and a bathroom with a large window. The bath is heated water rather than onsen water, and CLAYD bath minerals are provided.
There is no lift to the second-floor main-building rooms; access is by stairs. Guests who would find stairs difficult should discuss the room category with the hotel before confirming a booking.
The annex contains two Executive Double rooms and two Executive Twin rooms. Each measures 73 square metres including the terrace and accommodates one to three guests. These are the four rooms with their own semi-open-air onsen baths, operated on a 24-hour circulation system.
In the annex, the bed, living area, bath, terrace and bay are aligned along a single sightline. This is the clearer room choice when repeated in-room bathing is part of the stay.
A separate private open-air bath using Okushima Hamajima Onsen is available to hotel guests from both buildings. It cannot be reserved in advance: one slot per room, per stay, is arranged at check-in. This shared private bath should not be confused with the onsen baths inside the four annex rooms.
Both room categories include Mikimoto bath and skincare amenities, complimentary minibar drinks, a Nespresso machine and a Bluetooth speaker. Furniture layouts can differ within a category, and specific room numbers cannot be reserved.
Compare available Main Building and Annex plans on Expedia →
Ise-Shima on the Plate
Shima was historically known as a miketsukuni, a region that supplied food to the imperial household and court. The kitchen works with that local abundance through French technique rather than presenting a fixed list of prestige ingredients throughout the year.
Ise-ebi spiny lobster is associated with autumn through spring, while abalone comes into season in summer. Matsusaka beef and locally landed fish also appear. Menus change with the season and the day’s supply, so guests travelling for a particular ingredient should check its expected availability before choosing dates.
Executive chef Masato Imamura trained at Restaurant Hiramatsu in Hiroo and Paris, then worked at Auberge de Plaisance Sakurai before taking charge at Kashikojima when the hotel opened. Published menu examples have paired Ise sea bream with citrus, seaweed and Ise tea, cooked Matsusaka beef over Ise-Shima binchotan charcoal, and served abalone as a course of its own. These are examples, not guaranteed dishes.
Dinner service accepts last orders between 5:30 p.m. and 7:30 p.m. Meals included in the accommodation plan are served in the restaurant, not in the guest room. There is no formal dress code, but guest-room pyjamas and slippers cannot be worn in the dining room.
Children can stay at the hotel. Children’s plates, shorter courses, cots and children’s amenities are available subject to age, advance notice and availability. Dietary restrictions and allergies should also be discussed before arrival.
Breakfast, Sea Water and the Hours After Dinner
Breakfast is served in the dining room, with last orders from 8:00 a.m. to 9:30 a.m. A published example includes Hiramatsu tomato juice, Ise-ebi bisque, local vegetables, eggs Benedict, dairy products from Ise’s Yamamura Dairy and freshly baked bread. Guests staying a second night may be served a Japanese breakfast presented in Iga ware.
The restaurant does not open for lunch. Room service is available from 1:00 p.m. for guests staying consecutive nights.
The spa combines a private thalasso pool filled with sea water from around Kashikojima and CLAYD mineral treatments. It operates from 10:00 a.m. to a 5:00 p.m. final admission and requires a reservation. Swimwear is required in the pool, with rental suits available. Same-day appointments depend on availability.
Plan the Train Around Dinner
Kashikojima Station is the nearest rail stop. The published journey is about 130 minutes by Kintetsu limited express from Kintetsu Nagoya and about 160 minutes from Osaka-Namba. The hotel is approximately five minutes from the station by car or taxi.
A reserved transfer from Kashikojima Station operates between 2:00 p.m. and 5:00 p.m. Arrival details must be supplied in advance, and a taxi may be arranged instead depending on operations. Transfers outside those hours require consultation.
Published hotel information currently gives two different final check-in times: 5:30 p.m. in the FAQ and 6:30 p.m. in the general property information. The hotel also notes that times can vary by accommodation plan. Use the time stated on the selected plan and confirmation as the controlling condition; arriving by the early evening also leaves sufficient margin for the dinner course.
Check-out is at 11:00 a.m. Drivers have eight complimentary outdoor parking spaces. The hotel advises using map code 338 216 807*12 because a telephone-number search may display the wrong location. The standard EV charger requires advance booking after the room reservation is made.
Where the Stay Comes Together
The practical choice is between two different ways of using the onsen. The four main-building rooms pair 50–55 square metres with a heated-water bath and access to one private open-air-bath slot. The four 73-square-metre annex rooms add an in-room semi-open-air onsen bath that can be used throughout the stay.
From there, the other decisions are seasonal and logistical: confirm the expected period for Ise-ebi or abalone, match the train to the reserved transfer window, and leave enough time before dinner. With those details settled, the bay view, the course and the bath occupy the same compact eight-room setting.
Compare another stay around Ago Bay in our Amanemu hotel guide.
For more destinations, browse our Luxury Hotel Guides in Japan.
