SKY & SEA
Light through the clouds
Light falls through a break in the clouds. Follow the changing sea and sky through the day.
One Island, One Castle
33° North
An island embraced by national park waters, accessible by car
Saikai, Nagasaki
All 14 rooms, exclusively for your group Take your time with the sea, the sky and the spaces around you
CHECK AVAILABILITY（Opens the booking site (external)）The online booking system is currently available in Japanese. For assistance in English, please contact us.Discover Horizon Castle
THE PLACE · 33°N
33° North, a place that becomes the reason for the journey
In Sakito, Saikai, beside the 33rd Parallel North Observatory, the Goto-nada Sea and horizon open wide beyond the bridge. Morning light, passing clouds, dusk and star-filled nights. The same view never appears twice.
A lot of things you may do. Nothing you have to do.
DO MORE
- The sea
- Golf
- Culture
- Local life
- Garden & landscape
- Sport & movement
DO LESS
- Watch the sea
- Have coffee
- Read
- Live with art
- Play cards
- Yoga
- Watch the sunset
- Sleep
- Do nothing at all
Head out to sea, or simply enjoy the view. Choose how to spend the day, at your own pace.
Explore ExperiencesSTAY
Sleep beside the sea, surrounded by art
Five room types, 14 rooms in all. Windows facing the sea, distinctive interiors and art throughout the castle.
DINING
Seasonal flavours of Saikai, with a view of the sea
Seafood and seasonal ingredients, brought to the table each day.
CULTURE & AESTHETICS
A quiet encounter with Japanese aesthetics
SPACE · SPIRIT · SOUND · ART
At Horizon Castle, art, gardens, fragrance and music lend a quiet richness to every day of your stay.
Kazuyuki Ishihara | SPACE Sōhitsu Hachiya | SPIRIT Tetsuya Komuro | SOUND Sou Akou | ART
Sou Akou’s paintings are a central part of Horizon Castle’s collection, displayed over the long term.
*Personal appearances apply only to programs for which dates, content and participation have been formally confirmed.
WA-IKI / SEI-IKI
Cultural experiences · Japanese aesthetics · inner balance
WA-IKI | Culture & Harmony
Open the senses to culture and nature.
Sea, art and Japanese aesthetics, encountered through the five senses.
Exclusive use · executive meetings · special gatherings
SEI-IKI | Private Retreat
A place of stillness, privacy and purpose.
Exclusive use, executive retreats, board meetings and private hospitality.
PRIVATE STAY
One Island, One Castle, all 14 rooms for just one group
For time with those who matter, executive dialogue and private hospitality. Horizon Castle, entirely yours.
Exclusive use from ¥1,000,000
33°N STORIES
The sky and sea at 33°N, art within the castle and the flavours of Saikai. Discover this place through photographs and stories.
NIGHT SKY
The night sky at 33°N
On clear nights, stars appear above the sea. Discover how moonlight and weather shape the view.
ART
Quiet moments with paintings
Pause before Sou Akou’s works and spend a quiet moment with the paintings inside the castle.
NOW AT HORIZON CASTLE
- Exhibition · 30 Jan – 15 Mar 2027Painting exhibition by Harada YasushiAn exhibition by local artist Harada Yasushi at the Horizon Castle Art Museum. Dates: 30 January – 15 March 2027
- Spring at 33° NorthRead Stories
- Summer at 33° NorthRead Stories
- Autumn at 33° NorthRead Stories
- Winter at 33° NorthRead Stories
LIVE FROM 33°N
View on Instagram（Opens an external site）ACCESS
Toward the sea, at the end of the road
About 50 minutes by car from the Sasebo area. A high-speed boat also connects Sasebo Port with Oshima Port. Complimentary transfers from Oshima Port are available by advance reservation.
NAGASAKI · SAIKAI · 33° NORTH
