STAY
Where sea and sky meet, return to a quieter rhythm
Fourteen rooms in five types. Stay close to the view and the art, and let the pace of everyday life soften.
EXCLUSIVE USE
One Island, One Castle All 14 rooms, for just one group
Exclusive use from ¥1,000,000. Stay, dine and share the entire setting as one private group.
PLANS
Choose according to the purpose and length of your stay
Current plans, rates and availability are shown on the booking page.
ART & QUIET | Room only
Enjoy the sea, the sky and the art within, at your own pace.
MORNING AT 33° NORTH | With breakfast
Begin the day slowly, taking in the morning view.
SUNSET & ART DINING | Dinner and breakfast
Savor the cuisine of Saikai as the evening sky changes.
2 NIGHTS AT 33° NORTH | Two-night plan
Take two nights to settle into the landscape and the quiet rhythm of the castle.
If photos and rates are hidden, select “＋開く” below the room name.
LONGER STAYS
Stay longer, and the place opens up
Two nights, three nights, or a full week. A longer stay makes room for active days—and for days with no plan at all.
ROOMS
Fourteen rooms in five types
Sea-facing windows, individual interiors and art within the room. Choose the space that suits your journey.
Western-style Room | 35 m² | 1–2 guests
A Western-style room with a seaside window and art — a room for relaxed, easy days.
Japanese-style Room | 35 m² | 1–2 guests
Relax on the tatami and gaze at the sea beyond the window.
Onsai no Ma | 35 m² | 1–2 guests
The view from the window and the art in the room add color to your stay.
Japanese-Western Room | 55 m² | 1–4 guests
The comfort of tatami and the restful sleep of a bed, in a single room.
Suite | 70 m² | 1–2 guests
Spend relaxed, unhurried time before windows that open onto the sea.
FACILITY
Facilities
Onsai no Ma has a private bathroom. Please enquire before booking about the facilities in other rooms. A Card & Games Room and a Fitness Room are available within the property. There is currently no hot spring, large communal bath, shared shower or sauna.
Check-in 15:00 Check-out 11:00
Walks, easy runs and outings around Saikai, at your own pace: island walks and official visitor guides in one place.
Island walks & Saikai excursionsDINING
The season’s best from Saikai, at a table facing the sea
Seafood and seasonal ingredients shape each day’s table. Enjoy them slowly as the view changes from evening into night.
*Photos show examples. Actual dishes vary with the season, availability of ingredients and the plan you book.
Art, in the room
Selected guest rooms feature artworks. Move between the sea beyond the window and the work within.
