Activities
KAI Cultural Discovery
- Availability：
- All year
At KAI Aso, guests are invited to learn more about this volcano at the Caldera Bar, where bartenders serve drinks made with Aso’s natural spring water and regale guests with stories about Mt. Aso.
*Every KAI establishment offers a selection of free activities designed to introduce guests to Japan’s regional cultures.
Caldera horse riding under the morning sun
- Availability：
- Mar 1, 2026 – May 31＊Excluded date：3/8・3/15・3/20・3/22・3/29・4/5・4/25～5/10
Ride a horse across the plains under the morning sun, amid the buds of spring. Enjoy the ever-changing view of the buds of grass glistening with morning dew and the gradation of colors in the sky.
Kyushu azalea horse riding
- Availability：
- May 10, 2026 – Jun 10
How about a special experience viewing colonies of Kyushu azaleas, a favorite of many mountaineering and alpine plant enthusiasts, from horseback?
Horse riding under the stars
- Availability：
- Jun 1, 2026 – Aug 31※exclusion date：6/23～24、7/18～20、8/8～16
Enjoy the breathtaking beauty of the Milky Way, the Summer Triangle, and other spectacular celestial shows of nature in the vast grasslands, with the five peaks of Mount Aso and the Kuju mountain range also visible in the distance.
Hands-on Japanese cedar
- Availability：
- All year
This activity uses Oguni-sugi cedar, Kyushu's best wood which grows in Oguni Town at the foot of Mt. Aso. It's a simple process to shave the wood until it's smooth, but you can also feel the cedar's softness and warmth. It's a great thing to do if you have to remain in your hotel room.
Multi-Night Set
- Availability：
- From December1,2025
If you're staying for two nights, it's a waste to simply spend all your time in the room. We offer a set including a lunch bento box and local amenity goods perfect for a cozy stay-in, to help you make your personal time even more fulfilling.
Cool-down Soaking
- Availability：
- Jun 1, 2026 – Aug 31If the temperature on the day is low and unsuitable for "Cool-down Soaking," the hot spring will be provided at its standard temperature.
Under the supervision of a balneotherapy specialist, KAI presents "Cool-down Soaking"—a unique way to beat the summer heat. Enjoy a revitalizing hot spring experience complemented by specially designed cooling spaces and refreshing beverages.