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Hoshino Resorts KAI Unzen
Unzen, Nagasaki, Japan · KAI by Hoshino Resorts · Core Luxury



KAI Unzen borrows Nagasaki's wakaran style, the blend of Japanese, Chinese and Dutch aesthetics from the old trading port, in an onsen ryokan beside the highland steam of Unzen, whose vents made this mountain a spa town. Hoshino's KAI brand brings contemporary design and hot springs to the fumaroles, so the ryokan feels like a piece of Nagasaki's cosmopolitan past.
- 51 rooms
- Neighborhood: Unzen Onsen
About Hoshino Resorts KAI Unzen
- Hoshino Resorts KAI Unzen borrows Nagasaki's wakaran mix of Japanese, Chinese and Dutch trading-port aesthetics.
- The ryokan sits beside Unzen's highland fumaroles, the steam vents that made this mountain a spa town.
- It is a contemporary onsen ryokan of Hoshino's KAI brand.
History
Hoshino Resorts opened KAI Unzen at Unzen Onsen with a Wakaran design brief, folding Nagasaki's Japanese-Chinese-Dutch trading history into a KAI ryokan.
Restaurants and bars
- KAI Local Flavors kaiseki course (semi-private dining room) — Room service · Kaiseki with Shippoku and Nagasaki local ingredients
- KAISEKI — Restaurant · Kaiseki
- Green Terrace Unzen — Restaurant
- KASEYA cafe — Café
Experiences
- Unzen Jigoku Power Walk — A brisk morning walk around Unzen Jigoku, ending with stretches at the plaza of the inactive Kyuhachiman Jigoku, where the ground is warm from geothermal heat.
- KAI Cultural Discovery - Letterpress Printing — A letterpress printing experience in a space designed for it, where guests choose characters of various typefaces and print a card.
- Open-air bath in guest rooms with Unzen Onsen — Guest rooms feature a spacious open-air bath and a dedicated relaxation space for unwinding after a soak in Unzen Onsen.
- Kaiseki course dinner with local ingredients — A full-course kaiseki dinner in a semi-private dining room, including Shippoku-style rillettes, yusenpei baked with hot spring water, and flying fish dashi shabu-shabu.
- Hot spring soaks utilising Unzen Jigoku — Hot spring soaks and morning power walks that use the energy of Unzen Jigoku.
- Unzen Jigoku — Located right next to the Unzen Hell hot springs, with rising steam, sulfur scent and rumblings; about a 30-minute walk on foot.
Amenities
- Onsen
- Pet-friendly
- EV charging
Open Hoshino Resorts KAI Unzen in the atlas for live weekend rates, photos, and the full folio.
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More hotels in Unzen
- Mt. Resort Unzen Kyushu Hotel — Independent · Core Luxury
- RYOTEI HANZUIRYO — Independent · Core Luxury
- Fukudaya — Independent · Accessible Luxury
- Yuyado Unzen Shinyu — Independent · Accessible Luxury
KAI by Hoshino Resorts in The Maison: the brand's idea, history and every house on the atlas.